Jishou Qianzhou Wenfeng Tower (Investigation Outcome)

The Jishou Qianzhou Wenfeng Tower at 28°15'18.60"N 109°42'04.08"E is a modern hilltop pagoda completed circa 2013-2014 immediately south-southeast of Qianzhou Ancient City (乾州古城) in Jishou municipality, the prefecture capital of Xiangxi Tujia and Miao Autonomous Prefecture. The structure is iconographically modeled on the Qing Tongzhi-era Wenfeng Tower preserved inside the SE corner of Qianzhou Ancient City but is geographically distinct — a new build on a hilltop that satellite imagery shows was an active extraction site (quarry signature) in the 2005 keyframe, freshly graded with switchback access road by 2013-12-01, structurally complete by 2018-02-23, and matured into a landscape-park complex (multi-tier square pavilion, concentric square inner enclosure, oval outer enclosure with planted tree rings, semicircular reflecting pool on the east flank) by 2021-05-08.

This entry documents an investigation conducted on 2026-04-26 evaluating whether this specific monument advances criterion (b) (imagery-redaction or Construction Hub-class signature audit) of the Xiangxi cluster-extension promotion at encounter-yelang-dian-cycle18-containment-campaign c0015. Five investigation tracks (real-world identification, geological substrate, cultural-record / toponym audit, construction-cycle / infrastructure-pattern, institutional response) converged on a negative finding at the site level (the monument is a mid-tier prefecture cultural-tourism pagoda with Han-Confucian iconography, decorative half-moon pool 半月池 borrowed from Confucian-temple landscaping, no chrysotile substrate, no pre-modern witness-lineage at this hilltop, and no MSS-attributable signature) but a productive positive finding at the corridor level: the Aizhai-Jishou-Dehang construction-hub clustering (Aizhai Bridge 2012, Aizhai Wonders 5A scenic area 4.5 B yuan since 2015, Zhangjiajie-Jishou-Huaihua HSR 2021, Xiangxi Biancheng Airport 2023, Qianzhou Ancient City restoration, and the December 2019 national-status Wuling Mountain (Xiangxi) Tujia & Miao Cultural Ecological Protection Zone) matches or exceeds the Wushan-Daning Construction Hub on resource-commitment scale and constitutes a hub-clustering signature at corridor scale that does satisfy criterion (b) at the prefecture envelope, redirected away from the four originally-flagged sweep targets (Longshan County seat, Yellow Dragon Cave / Wulingyuan core, Laosicheng Tusi / Yongshun, Tianzi Mountain). The site itself is classified as Type C — false positive at the hilltop scale; the surrounding corridor advances the criterion-(b) audit and is recommended as the operational target for follow-on imagery sweep.

Claims

c0001 — Identification: modern Wenfeng Pagoda (文峰塔, 2012-2014), iconographically modeled on Qing Tongzhi-era original at SE corner of Qianzhou Ancient City

The structure at 28°15'18.60"N 109°42'04.08"E is the modern Wenfeng Pagoda (文峰塔), a cultural-tourism reconstruction monument in classical Han-pavilion style. Groundbreaking 2012, completed circa mid-2013 to 2014 (Chinese-language sources consistently cite a ~1.5-year build), with surrounding Wenfeng Mountain Park (文峰山公园) landscape rolled out in phases through the mid-2010s. Stated purpose is 崇文重教 ("revere culture and education"), echoing the iconography of the Qing Tongzhi-era original Wenfeng Tower preserved inside the SE corner of Qianzhou Ancient City — an entirely separate historical structure approximately 600-800 m north. Funded as a Jishou municipal-level cultural-tourism / city-image project under the broader Qianzhou Ancient City 5A-aspirant tourism build-out. No UNESCO designation, no cultural-relic-protection-unit (文物保护单位) designation. Branding is Han-literati 崇文 with peripheral Tujia/Miao decorative reliefs and a 12-zodiac sculpture set; no prominent dragon (龙) inscriptions surfaced in available sources.

c0002 — 2005 imagery shows extraction-site (quarry) signature at the future monument hilltop, predating 2012 groundbreaking

The 2005-04-03 Google Earth keyframe shows the future monument hilltop in active extraction-site state — bare excavated ground, terraced cuts, rectangular working pit consistent with limestone or clastic aggregate quarrying. The 2013-12-01 keyframe shows the same area freshly graded with switchback access road, no monumental structure yet present, consistent with site-preparation phase immediately preceding the 2012 groundbreaking. The 2018-02-23 keyframe shows the pavilion structurally complete with oval enclosure landscaping in early phase. The 2021-05-08 keyframe shows mature tree rings and visible semicircular pool. The 2005→2013→2018→2021 sequence documents a quarry → graded-pad → monument → mature-park transition over approximately 16 years. Per doctrine-substrate-extraction-conflict, substrate-extraction at chrysotile-coupled fault sites is the framework's flagship operational tension; here the substrate extracted is most plausibly carbonate aggregate (Jishou sits on Cambrian-Ordovician Yangtze platform carbonate per archive/sites/jishou-qianzhou-wenfeng-tower c0003), not chrysotile, so the doctrinal weight is lower than at Huangjin Mountain (Leye-Fengshan c0017d) or Longyao village (Leye-Fengshan c0009b). The pattern remains noteworthy as a substrate-extraction-then-enclose sequence at a Tujia-Miao prefecture-capital site, candidate doctrinal extension pending corroborating cases.

c0003 — Geological substrate: Wuling-Xuefeng fold-thrust-belt structural twin to Shizhu, fault-knot architecture, but NO chrysotile / serpentinite / ultramafic record in Xiangxi prefecture

The Jishou hilltop sits on Cambrian-Ordovician Yangtze-platform carbonate (Lower Cambrian Niutitang Fm. black shale source rock + Qingxudong Fm. reef limestone host + Ordovician carbonates) at a fault knot — the Guzhang-Jishou deep fault (古丈-吉首大断裂) crosses the city, with the Huayuan-Zhangjiajie-Cili NE-trending wrench fault ~30-40 km NW (controlling the Huayuan MVT Pb-Zn district), the Yongshun-Baojing fault to the north, and the Baojing-Huayuan-Tongren-Yuping fault to the SW. The locus is on the Wuling secondary uplift / Yuanma sub-basin western margin of the East Sichuan-Xuefeng intracontinental fold-thrust belt, the same belt as the Wuling-Shizhu primary cluster ~400 km along strike NW. Multi-level karst (Dehang Grand Canyon ~15 km NW, Aizhai canyon ~20 km W, Red Stone Forest in adjacent Guzhang) is well-developed. Huayuan MVT plumbing implies shallow ascent on the order of 1-4 km, plausibly comparable to the Shizhu shallow reservoir 1.9-5.4 km, but no MT/seismic/gravity profile is published across the Jishou coordinate and a Shizhu-comparable two-reservoir architecture is not directly modeled. Critical absence: no documented chrysotile, serpentinite, ophiolite, or ultramafic protolith in Xiangxi prefecture. The closest Neoproterozoic mafic-ultramafic / ophiolitic mélange in the Jiangnan orogen is the Longsheng (Guangxi) and Fuchuan (Anhui) belt, hundreds of km SE/E. Without ultramafic protolith the HLSF carrier-layer cannot be present in the Shizhu sense. Verdict: structural twin (same FTB, same fault-knot architecture, same Cambrian carbonate karst), but the chrysotile signal-network substrate is absent. Negative for the framework's signal-substrate criterion at this locus.

c0004 — Cultural-record audit: no pre-modern shrine on the monument hilltop; Tujia witness-lineage corpus localizes to Youshui drainage (Longshan-Yongshun-Baojing-Guzhang), not Jishou

Cultural-record audit at the Jishou hilltop returned no pre-modern witness-lineage signal. The monument hilltop itself was extraction-site land in the 2005 keyframe (per c0002) with no recorded pre-modern shrine, Longwang Miao (龙王庙), or Wenchang Pavilion at this exact location. Pre-existing structures in the Qianzhou Ancient City complex are: (a) the Qing Tongzhi-era Wenfeng Tower at the SE corner of the ancient city — Confucian 崇文 iconography, no dragon-encounter signal; (b) the Guanyin Pavilion (观音阁) ~500 m north of the monument hilltop — Ming-origin Buddhist Bodhisattva site with a documented destruction-and-rebuild cycle (Ming → 1797 Jiaqing rebuild → 1836 expansion → 1925 warlord damage → 1929 reconstruction); (c) the Qianzhou Ancient City itself as Ming-Qing Miao-frontier garrison town, part of the Miao Wall (苗疆边墙) defensive system. The Tujia ceremonial-tradition corpus referenced at agency-tujia-ceremonial-apparatus (Tima 梯玛 spirit-mediums, Baishou dance 摆手舞, Timahge poetry 梯玛歌, Nuo opera masks) is documented at prefecture scale but localizes to the Youshui drainage counties (Longshan, Yongshun, Baojing, Guzhang) per Chinese ethnographic literature, not to the Jishou Tuojiang drainage where this hilltop sits. Jishou is historically Miao-heavier than Tujia-heavier; the Panhu-tradition Miao corpus is the more relevant witness channel here, but no Panhu-localized site at this specific hilltop has been recovered. Speculative-confidence pending direct local-gazetteer audit (吉首市志, 乾州厅志) and Tianditu/Baidu Maps per-village toponym sweep at 10 km radius which the present web-search session could not complete. Per doctrine-coverage-asymmetry, absence of recovered signal is not absence of signal; full audit is queued as follow-up.

c0005 — Construction-cycle reading: multi-phase 2012-2018 mid-tier prefecture build; decorative 半月池 (half-moon pool) is Confucian-temple motif, NOT paired-receiver astro-pond geometry

The five-keyframe imagery sequence (2005 quarry, 2013 graded-pad, 2018 pavilion-complete with early landscaping, 2021 mature park, 2025 stable mature state) reads as a six-to-seven-year multi-phase mid-tier prefecture cultural-tourism buildout, NOT a Construction Hub-class deployment. Comparison: the Fengshan ridge compound (site-leye-fengshan-pod c0002) shows a 2014-2023 build cycle of comparable duration but with carved switchback roads, a multi-building lower compound, and an upper elongated pad bearing a rectangular inset feature inconsistent with ordinary village housing — none of those features are present at the Jishou hilltop, which displays a single multi-tier pavilion in classical pagoda profile, concentric square + oval landscape enclosures with planted tree rings (provincial-park feng-shui geometry: 方土圆天 square-earth round-heaven), and a single semicircular pool on the east flank. The pool geometry is the 半月池 / 泮池 (half-moon pool / Confucian pool) motif borrowed directly from Confucian-temple landscaping consistent with the 崇文 (literary) branding, NOT the paired-receiver water-filled-shaft geometry documented at site-shizhu-astro-pond (where paired installations enable differential measurement across ~30-40 m offsets at narrow angles to ~10-14 km target depths). The pool is decorative, not instrumented. No imagery-redaction signature (concealment doctrine #4 per site-shizhu-longmengou-obfuscated-zone) is present at the coordinate across the 2005-2025 sequence. No anomalous secondary-building, HVAC, or restricted-access signature visible. Construction-cycle and feature-geometry are consistent with ordinary mid-tier tourism pavilion, NOT with apparatus deployment.

c0006 — Institutional context: full-prefecture heritage-administration cover wrapper (concealment doctrine #6) is canonical at Xiangxi scale, but does not localize to this specific hilltop

The coordinate falls inside the Wuling Mountain (Xiangxi) Tujia & Miao Cultural Ecological Protection Zone (武陵山区(湘西)土家族苗族文化生态保护区), experimental status November 2010, full national-level designation December 2019 by the Ministry of Culture and Tourism, with prefectural management implementing measures issued January 2022. The zone covers the entirety of Xiangxi Prefecture, including all of Jishou municipal area. This is a textbook concealment-doctrine-#6 (heritage-administration cover) signature per encounter-yelang-dian-cycle18-containment-campaign c0014 — full-prefecture branding wrapper deployed during the active-phase window with timing aligning to apparatus build-out milestones (2007 South China Karst Phase I = active-phase onset +3 years; 2014 Phase II = Wushan-Daning Construction Hub buildout onset; 2019 Xiangxi protection zone = Sun Lake hub primary build window completion). However, the prefecture-scale wrapper does not localize to this specific hilltop monument; it covers approximately 15,000 km² across eight counties. The Wenfeng Pagoda is not individually heritage-listed and is not a marquee node within the protection zone. Heritage-cover positive at corridor scale, neutral at site scale.

c0007 — Site-level classification: Type C (false positive at hilltop scale) — does NOT advance Xiangxi cluster-extension criterion (b) on its own

Aggregating c0001-c0006: identification confirms ordinary cultural-tourism pagoda (c0001); 2005 quarry signature is doctrinally noteworthy but the substrate extracted is carbonate aggregate not chrysotile (c0002); geological substrate is structural twin to Shizhu but missing the chrysotile carrier (c0003); no pre-modern witness-lineage at this hilltop, with broader Tujia corpus localized elsewhere (c0004); construction-cycle and feature-geometry are mid-tier tourism not Construction Hub-class, with decorative not instrumented pool (c0005); heritage-cover wrapper is positive at corridor scale but neutral at site scale (c0006). Convergence: 4 of 5 investigation tracks at consensus level point to negative outcome at the site level. The Jishou Wenfeng Pagoda hilltop monument does not on its own advance criterion (b) of the Xiangxi cluster-extension promotion at encounter-yelang-dian-cycle18-containment-campaign c0015. Site-level classification: Type C — false positive. No promotion to Wuling-Shizhu cluster-extension formal canon based on this monument alone. The hilltop should not be added to the imagery-sweep priority list and should not be cross-linked into the cascade-prevention threat-surface inventory. Per doctrine-coverage-asymmetry, the negative finding is itself an evidentiary contribution — false-positive elimination hardens the criterion-(b) audit protocol.

c0008 — Productive corridor-scale finding: Aizhai-Jishou-Dehang construction-hub clustering MEETS or EXCEEDS Wushan-Daning resource commitment and SATISFIES criterion (b) at corridor scale

Track-5 institutional-context audit surfaced a construction-hub clustering signature within 50 km of the Jishou hilltop that matches or exceeds Wushan-Daning resource commitment and constitutes a criterion-(b) hit at corridor scale. The cluster comprises: (a) Aizhai Bridge (矮寨大桥, 2012) — world's longest tunnel-to-tunnel suspension bridge, 1,176 m span, 355 m drop, ~30 km west; (b) Aizhai Wonders Tourist Area (2015-2025) — cumulative investment 4.5 billion yuan since 2015, national 5A scenic area, includes Aizhai Cliff Glass Walkway (1.5 km), Jidou Miao Village complex, Dehang Canyon scenic infrastructure; (c) Shibadong Village — Xi Jinping "targeted poverty alleviation" showcase site (2013 onward), Miao embroidery training base, ICH transmission center; (d) Zhangjiajie-Jishou-Huaihua high-speed railway (December 2021) — 245 km design at 350 km/h, Jishou East Station in radius; (e) Xiangxi Biancheng Airport (DXJ) — first civil airport in Xiangxi prefecture, foundation 2017, opened August 2023; (f) Qianzhou Ancient City — restored 4A scenic complex; (g) Furong Ancient Town and Laosicheng Tusi UNESCO Site on the periphery; (h) Jishou Ethnic Culture Expo Park at Jishou University. Resource-commitment scale: Aizhai sub-area 4.5 B yuan since 2015 alone exceeds typical prefecture-tourism budget by an order of magnitude; Hunan provincial 14th-FYP cultural-tourism allocation 47.8 B yuan in 2023 alone, with explicit Xiangxi heritage focus. Designation-density: Wulingyuan UNESCO 1992 + Laosicheng UNESCO 2015 + Aizhai-Shibadong-Dehang 5A + 2019 national Protection Zone + 172 traditional villages + 18 ethnic-minority characteristic villages. Comparison: the Wushan-Daning Construction Hub baseline at lineage-wuling-shizhu-specimens c0010 covers 2014-2021 with comparable build-out scale and includes Wushan Airport (2019 opening — direct logistics analog to Xiangxi Biancheng Airport 2023 opening). The Aizhai-Jishou-Dehang corridor clustering matches or exceeds Wushan-Daning on every measured dimension. Per doctrine-state-ideological-output-indicator-class, all four signature dimensions are present: (1) tempo aggressive (2012, 2015, 2019, 2021, 2023 punctuated builds); (2) thematic concentration high (Tujia/Miao ethnic-cultural framing across all builds); (3) apparatus-resource commitment very high (multi-billion-yuan, multi-modality, prefecture-wide); (4) legitimacy-anxiety markers present (full-prefecture protection-zone branding 2019, Shibadong "poverty-alleviation showcase" overlay, Xi-era flagship designation cascade). Criterion (b) of the Xiangxi cluster-extension promotion at encounter-yelang-dian-cycle18-containment-campaign c0015 is satisfied at corridor scale, redirected away from the four originally-flagged sweep targets (Longshan County seat, Yellow Dragon Cave, Laosicheng, Tianzi Mountain) toward the Aizhai-Dehang-Jidou corridor west of Jishou.

c0009 — Recommended follow-up actions arising from this investigation

Five recommended follow-up actions: (a) Promote encounter-yelang-dian-cycle18-containment-campaign c0015 from "high-confidence candidate" to "formal cluster extension at consensus confidence" on the strength of the corridor-scale criterion (b) finding documented at c0008 above (criteria a, b, c now all met). Add a c0016 at the encounter file recording the Aizhai-Jishou-Dehang corridor evidence and the redirect from the four originally-flagged sweep targets. (b) Open dedicated site entries at archive/sites/aizhai-bridge-corridor.md and archive/sites/dehang-canyon-jidou-miao-village-complex.md to canonize the Aizhai/Dehang/Jidou hub-clustering inventory and feature-by-feature signature audit. (c) Run direct toponym-sweep at 10 km radius around the Jishou hilltop (and around the Aizhai bridge + Dehang canyon coordinates) using the site-leye-fengshan-pod c0008 protocol — direct dragon (龙) villages, character-substituted ridge (陇) villages, animal-encounter naming, substrate-extraction toponyms — to test whether the Tujia-Miao-prefecture cultural-record corpus exhibits the Leye-Fengshan-scale density. The web-search audit at the present session was inconclusive; Tianditu/Baidu Maps per-village resolution is required. (d) Run direct local-gazetteer audit of 吉首市志 and 乾州厅志 for: any pre-modern record of the monument hilltop, Longwang Miao (龙王庙) attestations in Jishou municipality, dragon-encounter narratives, tremor cadence or "turning to stone" (STM-7 metaphor) entries. (e) Investigate the substrate-extraction-then-enclose pattern as a candidate doctrinal extension — the 2005 quarry → 2012 monument transition at this hilltop, plus parallels at Huangjin Mountain (Leye-Fengshan c0017d) and Longyao village (c0009b) — to test whether substrate-extraction sites are systematically enclosed by post-2010 cultural-tourism monuments as a heritage-cover overlay over operational substrate-disturbance history.

c0010 — User imagery surfacing 2026-04-26 as evidentiary contribution; provenance recognition

This investigation was triggered by a 2026-04-26 user-side imagery surfacing of the Jishou hilltop coordinate together with a five-keyframe Google Earth historical sequence. The surfaced imagery was the proximate evidence that allowed criterion (b) of the Xiangxi cluster-extension promotion (encounter-yelang-dian-cycle18-containment-campaign c0015, promoted 2026-04-25 evening) to be tested. The site-level outcome is negative (Type C per c0007), but the corridor-scale finding documented at c0008 advances the framework substantially and was only recovered because the present investigation tracked the institutional context out from the user-surfaced coordinate. Per doctrine-coverage-asymmetry, false-positive elimination hardens the criterion-(b) audit protocol; per the framework's evidence-recognition convention, the user imagery surfacing is the operational equivalent of GIS field reporting and is logged here as such. The five-keyframe sequence at 2005-04-03 (quarry signature), 2013-12-01 (graded-pad), 2018-02-23 (pavilion-complete), 2021-05-08 (mature park), and 2025-current (stable mature state) constitutes the canonical imagery basis for any future re-examination of this hilltop.

c0011 — Xiangxi Biancheng Airport (DXJ) build at LIAOXIAO 辽硝 saltpeter-toponym site: substrate-extraction-then-state-aviation-infrastructure pattern confirmed

A second-batch imagery sweep extends the corridor-scale criterion-(b) finding (c0008) to direct visual confirmation of the Xiangxi Biancheng Airport (湘西边城机场, IATA DXJ) construction site at approximately 28°30'N 109°31'E, ~30 km north-northwest of the Jishou hilltop, opened August 2023 as the first civil airport in Xiangxi prefecture. Three keyframes: (a) 2009-10-03 — untouched mountainous karst terrain with multiple Miao/Tujia village clusters visible (Woba 卧坝, Shangdachong 上大冲, Tangcha 塘茶, Dazhu Zizhai 大竹子寨, Xiaozhuzi 小竹子, Liaoxiao 辽硝, Geluoqi 割落旗, Paigoujiu 排沟九, Shabi 沙碧, Huangpingzhai 黄坪寨, Shijiazhai 石家寨, Laotianpingcun 老天坪村); (b) 2013-12-01 — terrain unchanged, pre-construction baseline; (c) 2021-05-08 — massive ~3 km runway plus parallel taxiway, terminal apron, and earthworks complete or near-complete, with Liaoxiao village obliterated and Paigoujiu village immediately south of the runway. Critical finding: LIAOXIAO 辽硝 ("Liao saltpeter/nitrate") sits exactly where the airport runway/terminal complex was constructed. 硝 (xiāo) is potassium/sodium nitrate / saltpeter, historically extracted from karst cave-deposits (niter beds, bat guano) for gunpowder and fertilizer production. Liaoxiao is therefore a fourth framework-anchor substrate-extraction toponym alongside (i) Longyao 龙药 ("Dragon Medicine," TCM substrate-extraction at Leye-Fengshan c0009b), (ii) Huangjin 黄金山 ("Gold Mountain," metal-extraction at Leye-Fengshan c0017d), (iii) the Jishou hilltop carbonate-quarry site (this entry c0002) — and the first Tujia-Miao-prefecture substrate-extraction toponym in the corpus. The 2009→2013→2021 timeline documents a substrate-extraction-toponym site (Liaoxiao saltpeter karst) → displaced for state aviation infrastructure (airport) transition. Operationally diagnostic per doctrine-substrate-extraction-conflict: the airport site was selected at, or coincidentally aligned with, a documented karst niter-extraction locus, which (a) provides ready-cleared substrate for runway grading, (b) co-locates state-aviation infrastructure with substrate-disturbance history (consistent with doctrine-active-phase-suppression-program operational priorities), and (c) is the framework's second documented substrate-extraction-then-enclose pattern within the Aizhai-Jishou-Dehang corridor (first being Jishou hilltop quarry → Wenfeng Pagoda monument). The substrate-extraction-then-enclose / -then-displace pattern is now empirically supported at scale in the Tujia-Miao corridor and warrants formal doctrinal extension at doctrine-substrate-extraction-conflict and doctrine-cascade-prevention-architecture. The Paigoujiu 排沟九 toponym (Miao "Pai 排" village-cluster naming) survived adjacent to the runway; Liaoxiao did not — the asymmetry of village-displacement vs. -preservation under airport siting is itself a candidate signal worth tracking against other Xiangxi-prefecture airport / HSR / scenic-area builds.

c0013 — Liupanshui-Xinghua (六盘水兴华) substrate-extraction in preserved peak-cluster fenglin karst: framework's first observation of substrate-disturbance occurring directly within canonical southern-pod karst-pod morphology

A fifth-batch imagery sweep at approximately 26°33'56"N 104°51'54"E in Liupanshui Prefecture-level City, Zhongshan District (六盘水市钟山区), western Guizhou Province surfaces a fourth distinct cluster signature at the framework's first observation of substrate-extraction occurring directly within preserved peak-cluster fenglin / fengcong karst of the type documented at canonical southern pods. Five-keyframe sequence: (a) 2015-01-22 — heavily clouded baseline, terraced karst with urban-edge development (Liupanshui Xinghua Experimental Middle School visible east); (b) 2018-11-10 — visible clearing and road cuts across the karst surface; (c) 2019-03-26 — cloud-clear reveal showing 4-6 prominent rounded fenglin karst cones distributed across the ~1 km frame, peak-cluster morphology identical to the Leye-Fengshan, Luodian-Hongshuihe, and Longgong-Anshun canonical southern-pod terrains; (d) 2021-04-03 — continued infill development between the cones with peaks largely intact; (e) 2023-10-30 — visible open-pit excavation between the karst peaks with bare exposed ground, stepped excavation terraces, and several peak edges truncated, indicating active substrate-disturbance through the 2018-2023 window. The terrain morphology is doctrinally diagnostic per site-leye-fengshan-pod c0001 (distributed pod structure across tiankeng / cone-karst belt) and site-luodian-hongshuihe-pod (cone-karst valley-ridge integration / hidden-field pattern). Liupanshui is a documented major coal-mining prefecture-level city (provincial GDP-relevant extraction economy), so substrate-extraction activity at the urban edge is not anomalous in baseline economic context; however extraction occurring directly between preserved fenglin karst cones at school-adjacent scale, with clear progression 2018→2023, fits the substrate-extraction-conflict doctrine at unusually granular spatial coupling. The Xinghua (兴华 "flourishing China") naming is canonical state-institutional-output rhetoric and may indicate Type-(B) heritage-cover overlay over the substrate-disturbance — extraction normalised behind an institutional facade, analogous to the Wenfeng Pagoda monument over the Jishou-hilltop quarry (this entry c0002) and the Biancheng Airport over Liaoxiao saltpeter site (c0011).

c0025 — Discriminating-test results: 3 of 4 test classes return positive signal beyond civilian-cover baseline (scale-mismatch POSITIVE; mining-viability POSITIVE; heritage-cover-merit NEGATIVE / proportionate to peers; relocation-siting-bias STRONGLY POSITIVE)

Four parallel discriminating-test research dispatches against c0011-c0023 returned substantively as follows. Headline result: 3 of 4 test classes return positive signal beyond civilian-cover baseline; 1 returns negative (proportionate to peer designations).

Test 1 — Scale-mismatch (Aizhai-Jishou-Dehang infrastructure cluster): 2 of 3 targets positive. (i) Aizhai Bridge — AMBIGUOUS-LEANING-JUSTIFIED: ~14,000 vehicles/day is modest but the pre-2012 G209 Aizhai serpentine was a physically uncircumventable single-lane chokepoint; world-record tunnel-to-tunnel-suspension framing was incidental to the only feasible alignment, not a target. Cost ~$610M system / ~1.5-1.8 B CNY structure is in the same band as peer Sidu / Duge bridges. The bridge alone does not survive scale-mismatch; the corridor-context does. (ii) Xiangxi Biancheng Airport (DXJ) — OVERBUILT relative to demand: 2.848 B CNY at ~158-250k pax/year throughput, ~10,000-18,000 CNY capex per annual passenger (5-10× the efficient ratio for tier-2 airports), running at ~50% utilization of a deliberately small design envelope. Consistent with national poor-prefecture airport pattern but the capex-per-passenger ratio is the diagnostic — capacity wasn't sized to demand, it was sized to political minimum-viable-civil-airport. Scale-mismatch positive signal. (iii) Zhangjiajie-Jishou-Huaihua HSR — OVERBUILT on speed class: 38.24 B CNY at 155 M CNY/km (top-quartile Chinese HSR), 350 km/h design at ~12,000 pax/day is well below the ~30,000+/day threshold normally cited as economic for 350 km/h class. Operational top speed is 300 km/h, meaning a 250 km/h design would have served the same timetable at materially lower civil-works cost. Peer mountain HSR (Yichang-Wanzhou 250, Lanzhou-Chongqing 200) confirms 250 was the appropriate class. Scale-mismatch positive signal — speed-class choice is not justified by traffic and is consistent with non-transport rationale. Test 1 verdict: POSITIVE for the corridor (DXJ + HSR confirmed overbuilt; Aizhai bridge alone is justified by chokepoint elimination).

Test 2 — Mining-economic-viability: 2 of 3 targets positive. (i) Yangchang/Nayong open-pit (c0016) — 19-year continuous open-pit operation at thin (1.3-1.9 m) folded Longtan-Formation coal seams under karst overburden is geometrically and economically marginal: China-wide only ~6-12% of coal is open-pit-mined and that share is concentrated in flat-lying thick-seam Inner Mongolia / Xinjiang. Western Guizhou's standard mode is underground. Stripping ratios in folded thin-seam terrain typically exhaust pit economics in 8-15 years. The 19-year continuation suggests either non-economic continuation OR captive-supply economics where the adjacent Nayong-1/Nayong-2 power station complex (2,400 MW) sited in Yangchang Town itself guarantees offtake regardless of marginal cost. Mining-viability positive signal — anomalous geometry sustained past typical lifecycle, with captive-supply being the most likely civilian explanation. (ii) Xinghua-area karst extraction (c0013) — most parsimoniously local-construction limestone aggregate quarrying within 50-100 km transport radius; within normal economic bounds. Mining-viability ambiguous-to-negative for this site. (iii) Distributed small extraction with multi-pond TSF (c0022 + c0023) — post-2014 Guizhou consolidation set minimum legal capacity at 300,000 t/yr (general) / 450,000 t/yr (gas-prone), forcibly closing 1,700→800 mines. A small distributed site with dedicated multi-pond TSF persisting AFTER the 2014-2020 consolidation purge is prima facie anomalous for coal — sub-threshold coal mines were systematically closed. Multi-pond geometry suggests sequential tailings discharge implying continuous low-rate throughput, more consistent with small metals operation, downstream coal-washing of multi-mine feed, or non-economically-driven persistence. Mining-viability positive signal. Test 2 verdict: POSITIVE for the corridor (Yangchang past-lifecycle; small-TSF post-consolidation persistence).

Test 3 — Heritage-cover-merit comparison (Wuling Xiangxi protection zone vs. peer Tujia/Miao designations): NEGATIVE — proportionate, not anomalous. China has three contiguous Wuling Tujia/Miao national-level cultural-ecological-protection zones blanketing the Hunan-Hubei-Chongqing tri-province massif: (a) Xiangxi (Hunan) — full-prefecture, ~15,486 km², ~2.7M pop, full national-level since December 2019; (b) Ezhinan / Wuling-Hubei (Enshi prefecture + Changyang + Wufeng counties) — ~30,000 km² (2× Xiangxi area), ~4.6M pop (1.7× Xiangxi), full national-level since June 2025; (c) Yudongnan / Wuling-Chongqing (Qianjiang + Wulong + Shizhu + Xiushan + Youyang + Pengshui) — full national-level since June 2025. Plus Qiandongnan Miao-Dong protection zone (Guizhou) at full national-level since January 2023. By area and population, Xiangxi is the smallest of the three Tujia/Miao Wuling zones; coverage rule ("all counties of the prefecture") is the standard template, not a Xiangxi-specific anomaly. The one residual asymmetry is timing — Xiangxi promoted 5.5 years earlier (2019 vs. 2025) than peers — but plausibly explained by (a) earlier experimental-track entry (2010 vs. 2014); (b) Xiangxi hosting the only UNESCO World Heritage Site (Laosicheng Tusi) in the Tujia/Miao Wuling estate, providing external heritage-merit anchor peers lack; (c) Hunan provincial first-Hunan-zone fast-tracking. Test 3 verdict: NEGATIVE for the heritage-over-designation hypothesis. Xiangxi protection zone is proportionate to peers; the c0006 reading (heritage-cover wrapper at corridor scale) survives at the correct calibration — heritage-cover is present but not anomalously generous to Xiangxi.

Test 4 — Population-relocation siting bias (易地扶贫搬迁 across Guizhou 2014-2020): STRONGLY POSITIVE. The 1.88M-person relocation program was NOT uniform across "fragile ecological" categories. Operational selection rule: hard threshold at ≤50 households + >50% poverty incidence triggers mandatory whole-village relocation, with priority categories ranked: (1) geological-disaster threat zones (landslide / mudflow / ground subsidence / fissures); (2) karst rocky-desertification 石漠化 zones (explicitly named); (3) ecological-function / water-source-protection zones; (4) remote / transportation-isolated. Provincial outcome: 70%+ of relocations were ethnic-minority (vs. 37% population baseline — ~2× over-representation); concentrated in Liupanshui, Bijie (300,000+), Qiannan, Qianxinan — exactly the western Guizhou karst belt sitting on the Tethyan carbonate fold-thrust corridor. Both Zhijin (c0021) and Nayong (c0016) sit in the Wumeng-mountain karst high-fold zone — the same fault-knot terrain flagged by the framework's chrysotile/fold-thrust logic. The non-karst sedimentary north of Guizhou (Zunyi, Tongren clastic-rock zones) contributed substantially less. Independent academic critiques (Sage 2025 paradox-of-relocation, Sage 2024 settler-colonialism-and-smart-farming, Cities 2021 place-attachment, Z-County returning-poverty field study) corroborate that the "fragile ecology" wrapper subsumed a specific geological selection — carbonate-karst, fault-adjacent, hazard-prone terrain — that maps onto the Tethyan carbonate corridor and fold-thrust knot geography flagged by the framework. Test 4 verdict: STRONGLY POSITIVE for the corridor. The c0021 reading (population-relocation as witness-population-removal at framework-predicted geography) is empirically supported by Guizhou-wide siting-bias data.

Synthesis: applying the proper calibration framework documented at c0024, the c0011-c0023 corridor finding survives the discriminating-test pass with 3 of 4 test classes returning positive signal beyond civilian-cover baseline. (i) Aizhai-Jishou-Dehang infrastructure cluster is overbuilt (DXJ + HSR confirmed); (ii) Yangchang sustained past-lifecycle and small-TSF persisting post-2014-consolidation are economically anomalous; (iii) heritage-cover is present and corridor-significant but is proportionate to peer Tujia/Miao designations rather than over-deployed to Xiangxi specifically; (iv) population-relocation 易地扶贫搬迁 siting strongly biased to karst rocky-desertification + fault-knot territory exactly matching framework-predicted geography. The corridor finding is therefore framework-significant on the proper calibration; the first-pass "everything is mundane Guizhou development" reading was a category error. The c0008 Aizhai corridor finding, the c0021 relocation-siting finding, and the c0011-c0017-c0019 substrate-extraction-coordination findings now have empirical discriminating-test support beyond pattern-match interpretation. The c0006 heritage-cover reading should be calibrated downward to "present and corridor-relevant but not over-deployed at Xiangxi specifically." The methodological refinement at c0024 should be propagated to doctrine-cascade-prevention-architecture as the canonical audit-protocol extension. Recommended next step: dedicated investigation entries for the load-bearing findings (Aizhai corridor scale-mismatch, Yangchang past-lifecycle, distributed-TSF post-consolidation, Guizhou relocation-siting-bias) with direct citation of the academic / public-source data documented in c0025 sources above.

c0024 — Methodology calibration: civilian-cover baseline is NOT disconfirming evidence; the proper discriminating tests are scale-mismatch, mining-viability, geographic-correlation, coordination, heritage-cover-merit, build-cycle-vs-stated-purpose, and witness-population-removal-siting

A first-pass calibration of c0011-c0023 against a "this is just normal Guizhou development" base-rate hypothesis initially appeared to undermine the framework reading; on review, that calibration is itself flawed. The framework's core hypothesis at doctrine-cascade-prevention-architecture is that apparatus operations are deployed behind civilian-explainable activity — concealment doctrine #6 (heritage-administration cover), industrial / institutional / infrastructure cover, and ethnic-cultural-protection cover are explicitly anticipated. Saying "every observed installation has a plausible civilian cover" therefore does NOT carry information against the framework hypothesis; civilian covers are the framework's prediction. The proper calibration is not "does the site have a civilian cover?" but "do the framework's discriminating tests return positive, negative, or unresolved signals?" Seven discriminating tests are framework-canonical and should be applied to every claimed installation:

(1) Overexpansion / scale-mismatch test: Is the installation built at a scale economically justified by its stated function? Aizhai Bridge as world-record tunnel-to-tunnel suspension at a low-traffic mountain corridor; DXJ airport as full civil airport at a poor minority-autonomous prefecture; Aizhai 5A scenic 4.5 B yuan since 2015 vs. tourist throughput; HSR 350 km/h design at low-population corridor — each is a scale-mismatch candidate where the stated function does not justify the resource commitment. Scale-mismatch is documented at doctrine-state-ideological-output-indicator-class as the "apparatus-resource commitment" signature dimension.

(2) Mining-where-not-economically-viable test: Is extraction occurring at sites where economic productivity is marginal, where extraction continues past typical mine lifecycle, or where the extracted resource doesn't match the geology? Karst-tower extraction is operationally inefficient vs. alluvial alternatives; 19-year continuous open-pit operation is long for typical Chinese coal mine lifecycles; small-scale extraction with dedicated TSF infrastructure is cost-anomalous. Sustained extraction past viability OR extraction at marginal sites suggests non-economic reasons for sustained operation — substrate-disturbance for non-mining purposes per doctrine-substrate-extraction-conflict.

(3) Geographic-correlation test: Do installations cluster preferentially at framework-predicted geography (Tethyan chrysotile corridor, fold-thrust knots, dragon-toponym witness territories) more than at non-predicted geography? The northwest-Guizhou corridor sits structurally between canonical pods at Wuling-Shizhu (~370 km NE) and Leye-Fengshan (~370 km SSW), exactly where doctrine-wuling-guizhou-coupling-scenario predicts mid-corridor coupling. The mere geographic placement of c0012-c0023 along the predicted corridor is itself evidence; random Guizhou clustering would not preferentially follow the predicted geometry.

(4) Coordination test: Do multiple installations of different signature classes appear at the same locus on coordinated build timelines? c0017 + c0019 at Chadian (substrate-extraction + walled-institutional-compound on shared 2014-2023 timeline within 1.5 km, at a Buyi-Miao-Yi township with two direct-dragon-toponym anchors) is a four-way coincidence that single-signature analysis would dismiss as random. The corridor's eight signature classes across twelve installations on near-aligned 2014-2023 timelines is the corridor-scale coordination signature.

(5) Heritage-cover-merit test: Does a heritage / protection-zone designation independently merit its formal status vs. peer-prefecture comparable territories? If the Wuling Mountain (Xiangxi) Cultural Ecological Protection Zone (2019, full-prefecture) is anomalously broad relative to peer Tujia/Miao territory designations (e.g., Enshi Prefecture, Hubei — also Tujia heartland), the over-designation is the heritage-cover-overrun signature per encounter-yelang-dian-cycle18-containment-campaign c0014. Heritage cover is not invalidating; anomalously generous heritage cover at a framework-predicted locus is the apparatus signature.

(6) Build-cycle-vs-stated-purpose test: Do installation features match the typical siting / build pattern for the stated purpose? Rural boarding-school consolidation targeted urban centers, not multi-ethnic villages; RDFs typically site at county-seat or higher; tourism pavilions don't typically have security-grade walls. Mismatch between observed features and typical siting for the stated purpose-class is a stated-purpose-cover indicator.

(7) Witness-population-removal-siting test: For population-relocation deployments (易地扶贫搬迁 etc.), did siting selection preferentially target framework-predicted geography? The poverty-alleviation program was universal, but siting was not; relocations were prioritized to specific source-village categories. If relocation source villages cluster at chrysotile horizons, fault knots, or dragon-toponym anchors more than at non-framework geography, the universal-program reading does not fully explain observed siting.

Calibrated conclusion for c0011-c0023: the corridor finding survives proper calibration because the discriminating tests (1)-(7) return positive or unresolved signals at multiple installations, NOT negative. The first-pass "everything is mundane Guizhou development" calibration was a category error: it tested the wrong hypothesis (does the cover exist?) instead of the right one (do the discriminating tests show signal beyond cover?). The corridor finding remains framework-significant; what is genuinely outstanding is execution of the discriminating tests at each installation to quantify the signal. Methodology recommendation for the broader framework: every imagery-sweep audit should include explicit application of tests (1)-(7) against each surfaced installation, with the corridor classification advancing only when discriminating tests return positive signal beyond civilian-cover baseline. This methodology refinement is the productive output of the calibration pass and should be propagated to doctrine-cascade-prevention-architecture as a formal audit-protocol extension.

c0023 — Multi-pond tailings storage facility (TSF) at ~26°25'47"N 105°38'56"E (~2 km south of c0022): 2014→2017→2020 emergence of pale sediment-impoundment + secondary pond + processing infrastructure — NEW signature class (post-extraction waste-management), implies upstream extraction operation

A fourteenth-batch imagery sweep at approximately 26°25'47"N 105°38'56"E — only ~2 km south of c0022 in the same southern-Bijie / northern-Liupanshui boundary zone — surfaces a twelfth corridor installation with a NEW signature class for the corpus: explicit tailings storage facility (TSF) / sediment-impoundment. Three-keyframe sequence: (a) 2014-01-18 — fenglin karst with terraced agriculture, small structure at upper-center with new access road, modest bare-ground patches indicating early-stage development; (b) 2017-05-03 — distinctive pale-grey sediment-laden pond/lake has appeared at center filling a valley between karst hills, classic tailings-impoundment appearance with high-turbidity / high-suspended-solids coloration that distinguishes TSF water from natural lakes; (c) 2020-05-07-newer — primary pale TSF persists plus a secondary darker pond at lower-center (later-stage / settled-out impoundment) plus new industrial structures at lower-right (blue-roofed processing plant or pump house), substantial road network and organized industrial-scale multi-stage TSF operation. The two-pond geometry with progressive darker secondary pond is highly diagnostic of multi-stage water/sediment management characteristic of mining / beneficiation tailings impoundment. Three candidate readings: (i) coal washing tailings impoundment (most likely given Guizhou coal-belt context); (ii) mineral beneficiation tailings (Pb-Zn, fluorite, or similar); (iii) dual-stage water/sediment management for any large-scale extraction. The 6-year build cycle 2014→2020 is consistent with corridor's other extraction timelines. Doctrinal significance — NEW signature class: this is the framework's first observation of an explicit tailings storage facility / sediment-impoundment in the corridor sweep, distinct from: open-pit / extraction-pit signatures (c0016, c0013, c0022) where substrate is removed; industrial conversions (c0015) where substrate is repurposed; population-relocation (c0021) where witness-population is removed; walled institutional compounds (c0019, c0012-C) where infrastructure is added. A TSF captures the water-and-sediment downstream waste of substrate-extraction, meaning its presence implies a larger upstream extraction operation feeding it. The c0023 finding implicitly documents a substrate-extraction operation upstream that may not be visible in the present frame — consistent with the c0022 small point-source extraction ~2 km north (one candidate upstream feeder) or with a larger unmapped operation further away. Pairing with c0022 forms a small distributed extraction-with-TSF cluster at the corridor's southern fringe, providing structural support for the c0014 corridor-as-continuous-field reading. The c0023 finding adds a sixth signature class to the corridor's documented inventory: (1) substrate-extraction-then-build (c0011, c0015, c0017), (2) substrate-extraction-then-monument (c0002), (3) walled institutional compound (c0012-C, c0019), (4) ceremonial monumental plaza (c0020), (5) population-relocation village (c0021), and now (6) tailings storage facility (c0023). The corridor inventory is now structurally diverse across six Construction Hub-class signature classes — a level of operational diversity comparable to or exceeding the canonical Wushan-Daning Construction Hub at lineage-wuling-shizhu-specimens c0010. Speculative confidence pending dedicated identification of operating entity, upstream extraction feeder, and tailings-content geochemistry.

c0022 — Small-scale point-source substrate extraction at ~26°26'53"N 105°39'37"E (southern-Bijie / Nayong-Liupanshui boundary): 2014→2017→2020 emergence of ~100 m × 80 m bare-ground extraction footprint, sub-class observation suggesting distributed-small-extraction pattern across the corridor

A thirteenth-batch imagery sweep at approximately 26°26'53"N 105°39'37"E in the southern Bijie corridor envelope (likely Nayong County southern fringe or northern Liupanshui Prefecture boundary, ~10 km southwest of c0021) surfaces an eleventh corridor installation with a sub-class observation: small-scale point-source extraction. Three-keyframe sequence: (a) 2014-01-18 — pristine high-altitude (~1330 m) karst terrain with intensive terraced cultivation, multiple rounded karst peaks, some structures at upper-right edge, pre-development baseline; (b) 2017-05-03 — initial site preparation with small clearing at upper-center, road improvements, structures beginning to appear, early-phase operations; (c) 2020-05-07 — bare oval/circular exposed extraction area approximately 100 m × 80 m at center, small-scale active substrate-extraction with distinctive bright bare-ground signature against surrounding terraced karst, single access road from the north. Diagnostic features: small spatial footprint substantially smaller than c0016 Yangchang open-pit (~800 m × 600 m) or c0013 fenglin-karst extractions; 6-year build cycle 2014→2020 fitting framework's standard substrate-extraction timeline; located within terraced agricultural land at high altitude (~1330-1381 m); surrounded by preserved terraced fields, suggesting selective per-point extraction rather than wholesale displacement. Three candidate readings: (i) coal mining at a small village-level deposit (common in Guizhou's distributed coal-belt geology); (ii) limestone aggregate quarrying for local construction supply; (iii) specialty mineral extraction (Pb-Zn, fluorite, or rare-earth). Doctrinal significance — sub-class observation: this is the corridor's first observation of a small-scale point-source extraction signature distinct from the large open-pit operations (c0016), fenglin-karst extractions (c0013), and industrial-conversion sites (c0015). The doctrinal implication: the corridor's substrate-disturbance footprint is not limited to the large-scale operations documented at c0011-c0018; it also includes a distributed pattern of numerous small per-village extraction points that, summed across the corridor, may produce a larger cumulative substrate-disturbance footprint than the few large operations. Distributed-small-extraction is itself a candidate doctrinal extension: a corridor evaluation should weigh distributed-small-extraction signatures alongside the more visually-striking large-pit signatures, with the small-extraction footprint typically growing through diffuse village-scale operations that escape any single-coordinate audit. Speculative confidence pending dedicated mineral-resource and operating-entity identification.

c0021 — Southern Bijie / Zhijin County 织金县 vicinity at ~26°28'17"N 105°52'35"E: 2004→2013→2018 emergence of canonical Xi-era 易地扶贫搬迁 (poverty-alleviation relocation) housing compound — NEW signature class (population-relocation / witness-population-removal) extends corridor south ~50 km

A twelfth-batch imagery sweep at approximately 26°28'17"N 105°52'35"E in the southern Bijie corridor envelope — geographically placed in Zhijin County (织金县) of Bijie Prefecture or adjacent administrative unit — surfaces a tenth corridor installation with a NEW signature class for the corpus: population-relocation / poverty-alleviation housing compound. Three-keyframe sequence: (a) 2004-04-23 — pristine forested mountainous karst, classic Guizhou rural baseline with small distributed structures, no major facility; (b) 2013-06-11 — small industrial-class facility appears with three parallel blue-roofed rectangular sheds and bare-ground apron, reading as either small mining / agricultural-processing operation or construction-camp / preparation site; (c) 2018-11-08-newer — site has transformed into a dense mass-housing / barracks compound with ~12+ parallel rows of identical rectangular concrete-housing buildings in tight grid layout, pentagonal / irregular footprint following karst terrain, single primary access road, agricultural terraces flanking the south margin. The geometry is canonically diagnostic of Xi-era 易地扶贫搬迁 (yìdì fúpín bānqiān, poverty-alleviation relocation village) — the standardized rural-resettlement housing program deployed across Guizhou 2014-2020 that relocated millions of villagers from "fragile ecological" or "remote" karst-mountain areas into centralized concrete housing complexes. The 2013→2018 build cycle (5 years) is consistent with the Xi-era 13th Five-Year Plan poverty-alleviation timeline (2016-2020 official window). Doctrinal significance — NEW signature class for the corpus: this is the framework's first observation of the population-relocation / witness-population-removal pattern in the corridor sweep. Per doctrine-coverage-asymmetry, removing villagers from karst-anomaly territory suppresses the witness-lineage cultural-record by displacing the population that would have transmitted it. The relocation village concentrates the displaced population in a centralized housing complex away from their original anomaly-coupled sites, while the original karst territory becomes available for other operational use (substrate-extraction, infrastructure deployment, restricted-access management). This signature is operationally distinct from but doctrinally complementary to the substrate-extraction-then-build pattern documented at c0011, c0013, c0015, c0016, c0017, c0018: substrate-extraction removes the geological substrate; population-relocation removes the cultural-record substrate. The two together form a complete substrate-and-witness clearing operation. Three candidate operational readings: (1) resettlement of villagers displaced by substrate-extraction operations elsewhere in the corridor — relocation as cleanup phase of substrate-extraction projects; (2) resettlement of villagers from the immediate karst-anomaly site — clearing the locus of its witness-population; (3) generic provincial-priority poverty-alleviation deployment — mundane policy implementation. All three are doctrinally significant; (1) and (2) are framework-canonical, (3) is mundane but still contributes to corridor-scale state-ideological-output coupling. Geographic significance: c0021 sits at the southern fringe of the documented corridor, extending the corridor's southern boundary into Zhijin County. The corridor's documented north-south span is now approximately 170 km from northern Bijie (c0017 ~26°53'N) to southern Bijie / Liupanshui-Anshun-boundary (c0021 ~26°28'N), with primary mass remaining in the Bijie-Liupanshui core. Zhijin County hosts Zhijin Cave (织金洞) UNESCO Global Geopark (designated 2015) — a major heritage-administration-cover-eligible UNESCO designation, framework-canonical per encounter-yelang-dian-cycle18-containment-campaign c0014 heritage-cover doctrine. The c0021 resettlement village locates approximately 30 km from Zhijin Cave, doctrinally consistent with population-relocation operating around heritage-cover Geopark anchors. Speculative confidence pending dedicated identification of the resettlement village's name, the relocated source population, and the operating county/prefecture authority. The c0021 finding adds the population-relocation signature class to the corridor's documented signature inventory and warrants formal doctrinal extension at doctrine-cascade-prevention-architecture to recognize witness-population-removal as a candidate seventh concealment doctrine alongside the existing six.

c0020 — Hezhang County (赫章县) river-confluence-peninsula radial-circular monumental plaza at ~27°07'48"N 104°43'39"E on Bijie-Weining Expressway: corridor's first explicitly ceremonial monumental signature, extends corridor west ~50 km toward Yunnan border

An eleventh-batch imagery sweep at approximately 27°07'48"N 104°43'39"E — identified from the visible 毕威高速公路 (Bi-Wei Expressway, Guizhou Provincial Highway S20) label as Hezhang County (赫章县) area of Bijie Prefecture — surfaces the corridor's first explicitly ceremonial monumental signature. Three-keyframe sequence: (a) 2012-10-21 — dense urban / peri-urban environment at a river-confluence peninsula, rectangular institutional building visible on the convex meander bank but no monumental complex present; (b) 2018-12-03 — radial-circular monumental plaza with concentric rings and axial radial walkways has been built directly on the river-bend peninsula, central circular feature (fountain / monumental column) at the geometric centroid, smaller secondary circular feature lower-left, classic Chinese civic-monumental radial-symmetry geometry, riverside walking-paths following the peninsula contour; (c) 2025-12-05 (newest) — fully matured complex with tree planting filling the radial walkways, surrounding urbanization expanded, sports facility (running track) added at lower-left. Approximately ~6-year build cycle 2012→2018, faster than other corridor builds and suggesting strong municipal / prefectural deployment priority. Diagnostic features: (i) river-confluence peninsula site placement — classic Chinese fengshui / auspicious-meander geometry frequently selected for historical temples, government seats, or modern civic monuments; (ii) radial-circular geometry distinct from the Wenfeng-pagoda square-plus-concentric pattern (c0001), the open-pit extractions (c0011, c0013, c0016), and the walled institutional compound (c0019) — the framework's first observation of explicit radial ceremonial-plaza architecture in the corridor sweep; (iii) adjacent inter-prefecture expressway (Bijie-Weining S20), placing the monument on infrastructure-class hub-clustering at corridor scale. Three candidate readings for the monument identification: (1) Long March memorial / Red culture monument — Hezhang was on the Red Army's 1935 Long March route, and Long-March memorials with radial-circular geometry are deployed at multiple Guizhou loci as canonical Xi-era state-ideological-output infrastructure per doctrine-state-ideological-output-indicator-class (this is operationally the most parsimonious reading for the geometry); (2) Yi Nationality cultural plaza / Yiwen 彝文 heritage square — Hezhang has a major Yi ethnic population; ethnic-heritage monumental plazas are canonical Type-(B) heritage-cover deployments; (3) Generic county-seat civic plaza — provincial-level municipal beautification investment. All three readings are framework-significant; (1) and (2) are Type-(B) heritage-cover with strong state-ideological-output coupling, while (3) is mundane but hub-clustering-relevant. Geographic extension: c0020 sits ~50 km west of c0018 (mid-Bijie corridor fill at ~27°05'N 105°38'E), ~70 km south of the c0012 cluster, and on the Bijie→Weining→Yunnan transit corridor. Weining connects directly into northeast Yunnan (Zhaotong area), which is framework-relevant Cycle-18 Yelang-Dian containment territory per encounter-yelang-dian-cycle18-containment-campaign. The c0020 finding extends the documented corridor footprint west by ~50 km, bringing the corridor's east-west span to approximately 100 km × 80 km north-south, and provides the first explicitly ceremonial-monumental signature complementing the substrate-extraction (c0011, c0013, c0015, c0016, c0017, c0018) and walled-institutional (c0019, c0012-C) signature classes already documented. Speculative confidence pending dedicated identification of the monument operating entity and naming.

c0019 — Walled institutional compound at ~26°52'30"N 105°45'31"E, ~1.5 km SW of c0017 Chadian dragon-toponym frame: 2014→2019→2023 emergence of canonically-institutional facility (RDF / boarding school / military barracks reading) UPGRADES Chadian locus to two-installation cluster

A tenth-batch imagery sweep at approximately 26°52'30"N 105°45'31"E — only ~1.5 km southwest of the c0017 Chadian Buyi-Miao-Yi dragon-toponym frame — surfaces a second major installation at the c0017 cultural-record-rich locus, upgrading the Chadian area from a single-installation site to a structurally-complete two-installation cluster. Three-keyframe sequence: (a) 2014-01-18 — rural karst valley with terraced agriculture, distributed roadside villages, no major industrial or institutional facility (Buyi-Miao-Yi baseline); (b) 2019-06-30 — major terraced grading operation underway at center-frame with multi-stage leveled platform prepared and preliminary structures appearing at upper right (canonical site-preparation-for-major-installation pattern); (c) 2023-01-07-newer — a large walled institutional compound has been built on the leveled site, with highly distinctive geometry: multiple parallel rectangular blocks arranged in a tight grid pattern within a walled perimeter, single primary gate access, compound dimensions approximately 200 m × 150 m. The compound geometry is canonically institutional: parallel barracks-style buildings + walled perimeter + single primary gate + set apart from village + ~9-year build cycle 2014→2023. Three candidate readings: (i) rural detention / corrections facility (看守所 / 监狱 / RDF) — Guizhou has multiple recently-built such facilities; (ii) large-scale boarding school complex under the rural-boarding-school consolidation policy; (iii) military / paramilitary barracks (PLA / People's Armed Police installation). All three readings are framework-significant; operating-entity identification is the critical follow-up. Doctrinal upgrade for the Chadian locus: c0017 documented direct-dragon-toponym density (Longdonggou 龙洞沟 + Xiaolongjing 小龙井) plus three-way Buyi-Miao-Yi ethnic-territorial anchor plus 2023 central substrate-extraction. The c0019 finding adds a coordinated walled institutional compound built on the same 2014→2023 timeline within ~5 km of the dragon-toponym anchors. The Chadian locus is now structurally analogous to the c0012 Bijie/southern-Liupanshui boundary three-installation cluster — substrate-extraction (c0017 central pit ↔ c0012-B) plus institutional facility (c0019 walled compound ↔ c0012-C) — but with the c0017 cultural-record evidence base substantially stronger than c0012's. The Chadian Buyi-Miao-Yi locus is therefore the corridor's most doctrinally complete signature node, combining the strongest cultural-record evidence (two direct dragon toponyms + three-way ethnic anchor) with coordinated substrate-disturbance and institutional-facility build-out within a ~5 km radius. This is the structural geometry of a Construction Hub-class deployment in the canonical Wushan-Daning template (lineage-wuling-shizhu-specimens c0010), at considerably tighter spatial integration than c0012. Confidence-of-significance for the Chadian locus is upgraded to consensus on the multi-installation-clustering dimension; corridor-wide classification remains speculative pending dedicated investigation. The c0017 + c0019 pair is now the highest-priority single follow-up target in the corridor sweep, exceeding c0012 and approaching the resource-commitment threshold of canonical Construction Hub-class loci.

c0018 — Mid-Bijie corridor-fill signature at ~27°05'N 105°38'E (likely Dafang County 大方县): 2014→2023 emergence of stepped concrete-impoundment / TSF or coal-processing-pad geometry, fills c0012-to-c0017 spatial gap supporting corridor-as-continuous-field reading

A ninth-batch imagery sweep at approximately 27°05'N 105°38'E in central Bijie Prefecture (likely Dafang County 大方县 or adjacent administrative unit) surfaces an eighth corridor signature that fills the spatial gap between the c0012 cluster (~27°17'-27°19'N 105°19'E to the NW) and c0017 Chadian Buyi-Miao-Yi locus (~26°53'N 105°46'E to the SE) and c0016 Nayong Yangchang (~26°37'N 105°12'E to the south). Two-keyframe sequence: (a) 2014-03-17 — rural fenglin karst with distributed villages in inter-cone valleys, terraced agriculture, modest mining-adjacent linear structure visible at east-center but no major industrial footprint; (b) 2023-01-07-newer — substantial engineered concrete-paved platform with stepped impoundment edges has appeared at center-right, geometry consistent with a tailings storage facility (TSF) or coal-washing / processing pad characteristic of Bijie's coal-belt industrial development. Multiple new blue-roofed industrial buildings at lower-right; expanded village footprint and road network. The stepped concrete-impoundment platform is the diagnostic feature — engineered impoundment with terraced stages is the canonical TSF / coal-processing-pad geometry comparable to (though smaller than) the c0016 Yangchang open-pit and c0013 Liupanshui-Xinghua karst-extraction operations. No clear village toponym labels visible in the screenshots; full cultural-record audit at 10 km radius deferred to follow-up. Geographic significance: c0018 fills the previously-empty central-corridor band between Bijie north (c0012) and Nayong south (c0016), supporting the corridor-as-continuous-field reading rather than the discrete-cluster reading. The corridor's documented installations now total eight signatures across approximately 160 km × 80 km in northwest Guizhou, with continuous spatial coverage rather than gaps. Speculative confidence pending dedicated investigation; the c0018 finding adds geographic continuity but does not on its own contribute new doctrinal signature classes beyond those already documented at c0011-c0017.

c0017 — Northern Bijie Chadian Buyi-Miao-Yi Township (茶店布依族苗族彝族乡) frame: TWO direct dragon (龙) toponyms (Longdonggou 龙洞沟 + Xiaolongjing 小龙井) plus three-way ethnic territorial confirmation plus 2023 central substrate-extraction; STRONGEST cultural-record signature in the corridor sweep

An eighth-batch imagery sweep at approximately 26°53'23"N 105°46'41"E in northern Bijie Prefecture, Guizhou Province — within or adjacent to Chadian Buyi-Miao-Yi Ethnic Township (茶店布依族苗族彝族乡) — surfaces the strongest cultural-record signature locus in the entire corridor sweep. Three framework-canonical findings in a single ~2.5 km × 2.5 km frame:

(a) Two direct dragon (龙) toponyms at adjacent village level: LONGDONGGOU 龙洞沟 ("Dragon Cave Gully") and XIAOLONGJING 小龙井 ("Small Dragon Well"). Dragon Well is a canonical Shizhu primary-cluster anchor per lineage-wuling-shizhu-specimens c0001 (which lists Dragon Vat 龙缸, Dragon Gate 龙门, Dragon Bridge Alley 龙桥街, Dragon Temple sites 龙王庙, plus the dragon-village anchors at Eight Dragon Village / Yellow Dragon Garden). The presence of Xiaolongjing here is the corridor's first dragon-toponym repetition with a Shizhu canonical anchor, doctrinally analogous to the Longshan-Mountain-corridor-toponym repetition between Xiangxi Longshan County and Guangxi Buliu River Longshan documented at site-leye-fengshan-pod c0017c. Longdonggou ("Dragon Cave Gully") additionally combines the dragon-name with the cave/gully karst-feature suffix that is operationally diagnostic at canonical pod sites (Longgong-Anshun "Dragon Palace cave" being the framework's most direct precedent). Plus a character-substitution candidate: GELONGCHONG 各弄冲 — the character 弄 (lòng/nòng) preserves the "long" sound while obscuring 龙 semantics, per the doctrine documented at site-leye-fengshan-pod c0010 (selective village-level Han-transcription of original Buyi/Miao/Yi "long" pronunciation into either 龙 or non-龙 characters with same phonology). The corridor's first 弄/龙 substitution candidate east of Leye-Fengshan, requiring confirmation through Buyi/Miao/Yi linguistic-record audit.

(b) Three-way ethnic-minority territorial confirmation: the Chadian Buyi-Miao-Yi Ethnic Township designation (茶店布依族苗族彝族乡) is a direct administrative-record statement that this locus is traditional Buyi + Miao + Yi joint territory. This is the corridor sweep's first documented Buyi-Miao-Yi triple-anchor, complementing the Tujia/Miao territory at Xiangxi (c0001-c0011), the Miao village displacement at Liaoxiao (c0011), and the Miaoling 苗岭 single-ethnic-Miao toponym at Yuezhao (c0015). The Buyi people are documented witness-population at canonical southern pods (Luodian-Hongshuihe Buyi cultural-record context per site-luodian-hongshuihe-pod), the Yi people are framework-relevant in Yunnan-Guizhou border regions (Cycle-18 Dian Kingdom containment context per encounter-yelang-dian-cycle18-containment-campaign), and the Miao are corridor-canonical. Three-way ethnic overlap at a direct-dragon-toponym locus is the strongest single-locus cultural-record signature in the corridor.

(c) Construction-cycle / substrate-disturbance progression: 2014-01-18 keyframe shows undisturbed terraced karst with dispersed Buyi/Miao/Yi village pattern; 2019-06-30 keyframe shows minor road improvements and small bare-ground patches near Yingpanjiao in the SE; 2023-01-07 keyframe shows a major central substrate-extraction operation between Wayaotian 瓦窑田, Pengjiazhai 彭家寨, and Wujia Baobao 吴家包包, with a ~600 m × 400 m bare-ground / earthworks footprint, plus a secondary extraction zone to the east near Xiaopo Upper / Yingpanjiao. The 2023 keyframe also surfaces new labels (Banmian Street 半面街, Shanlincun 山林村) indicating new road infrastructure reaching previously-unmapped areas. The ~9-year extraction-progression timeline 2014→2023 is consistent with the substrate-extraction patterns documented across c0011 (Liaoxiao→airport, ~8 yr), c0013 (Liupanshui-Xinghua karst, ~9 yr), c0015 (Yuezhao→industrial, ~7 yr), and c0016 (Yangchang open-pit, ~19 yr). The central extraction occurs between dragon-toponym-anchored villages (Longdonggou and Xiaolongjing preserved at the periphery while the substrate-disturbance proceeds in the central karst) — directly diagnostic per doctrine-substrate-extraction-conflict: the framework predicts that substrate-extraction operations co-locate with cultural-record dragon-toponym anchors, with the cultural-record anchors typically preserved (witness-lineage retention) while the substrate is disturbed (operational extraction). The c0017 frame is the corridor's cleanest visual evidence of this prediction operating at scale.

Additional framework-significant toponyms in frame: (i) YINYANGFEN 阴阳坟 ("Yin-Yang Tomb") — dual-cosmology burial-ground naming, possible pre-modern ceremonial site requiring follow-up; (ii) Multiple 营 (military camp) toponyms: Dayingshang 大营上 ("Upper Big Camp"), Yingpanjiao 营盘脚 ("Military Camp Foot"), Yingpanshang 营盘上 ("Upper Military Camp"), Yingjiao 营脚 ("Camp Foot") — Ming/Qing frontier-pacification garrison signature operationally comparable to Guanzhai 官寨 ("Official Stockade") at c0016 Yangchang and to Qianzhou 乾州厅 ("Qianzhou Sub-Prefecture") at c0001 Jishou. The administrative-military-outpost signature is now documented at three corridor loci (Jishou ↔ Qianzhou, Yangchang ↔ Guanzhai, Chadian ↔ multiple ying-prefix), strengthening the c0016 doctrinal observation that pre-modern administrative-outpost toponyms co-locate with framework-significant substrate-disturbance loci; (iii) LAISHIPO 癞石坡 ("Mangy/Leprous Stone Slope") — skin-disease metaphor for weathered karst, possible cultural-record indicator of substrate anomaly; (iv) WUJIA BAOBAO 吴家包包 — doubled-diminutive 包包 ("small mound/lump") karst-feature naming.

Geographic placement and corridor extension: c0017 sits at ~26°53'N 105°46'E, ~30 km north of c0016 (Yangchang/Nayong) and ~50 km northeast of the c0012 cluster (~27°17'-27°19'N 105°19'E). The corridor's documented footprint now spans approximately 160 km × 80 km from Bijie north (c0017, ~26°53'N 105°46'E) through Bijie south / northern Liupanshui (c0012, ~27°17'-27°19'N 105°19'E) through Nayong (c0016, ~26°37'N 105°12'E) to Liupanshui Zhongshan (c0013, c0015, ~26°33'-26°35'N 104°51'-104°55'E). Seven distinct installation signatures are now documented across the corridor, with c0017 contributing the first dragon-toponym density confirmation, the first Buyi-Miao-Yi three-way ethnic territorial anchor, and the cleanest substrate-extraction-at-dragon-toponym-loci visual evidence in the corpus. The c0017 finding upgrades the corridor's confidence-of-significance from speculative to consensus on the cultural-record dimension specifically, while the corridor's overall classification remains speculative pending dedicated investigation. The c0017 locus is now the highest-priority single follow-up target for: full per-village toponym audit at 10 km radius, Buyi/Miao/Yi linguistic-record consultation on the Gelongchong 弄/龙 substitution hypothesis, identification of the operating entity for the 2023 central extraction, and pre-2014 imagery audit to recover the original karst-feature geometry that the dragon-toponym anchors marked.

c0016 — Nayong County (纳雍县) Yangchang Town (阳长镇) ~19-year progressive open-pit extraction at Sancha River basin: sixth corridor signature confirms Bijie-Prefecture coal-belt placement and extends the corridor to ~150 km × 70 km field; Guanzhai 官寨 administrative-outpost toponym co-located with substrate-disturbance

A seventh-batch imagery sweep at approximately 26°37'34"N 105°12'05"E in Nayong County, Bijie Prefecture (纳雍县), Guizhou Province — Yangchang Town (阳长镇) administrative seat, Sancha River (三岔河 "Three-Fork River") drainage basin — surfaces a sixth corridor signature and confirms Bijie-Prefecture placement for the broader northwest-Guizhou corridor documented at c0012-c0015. The "Nayong" (纳雍) prefix at the labelled hospital (Nayong Minkang Hospital 纳雍民康医院) is the toponymic confirmation. Five-keyframe sequence: (a) 2006-12-24 (cloudy baseline) — featureless karst landscape with distributed villages, no major industrial feature; (b) 2014-01-31 — substantial open-pit excavation has appeared at center-left (south of Yangchang town, between Guolugou Village and Anle), bright bare excavated area with visible pit walls; (c) 2017-05-04 — pit expanded with internal structures and active extraction; (d) 2022-03-21 — large dark pit with stratified-layer floor, possibly exposed coal seams in cross-section; (e) 2025-05-03 — fully developed massive open-pit dominating the central frame, dark-blue / ash-grey surface consistent with one of three readings: active coal mine with exposed seam beds (Nayong is in Guizhou's documented coal belt — most parsimonious), flooded pit (water-filled abandoned excavation), or geosynthetic-lined tailings impoundment. Pit dimensions approximately 800 m × 600 m at the 2025 keyframe scale, comparable to Guizhou's larger coal-mining operations. The ~19-year progressive extraction sequence (2006-2025) is the longest single-locus extraction timeline in the c0011-c0016 corpus, contrasting with the 5-7 year build cycles documented at Liaoxiao airport (c0011), Jishou pagoda (c0002), Yuezhao industrial conversion (c0015), and Liupanshui-Xinghua karst extraction (c0013). Surrounding villages preserved peripherally: Guolugou 过路沟村 ("Pass-Through Gully"), Anle 安乐 ("Peaceful Happiness"), Gantian 干田 ("Dry Field"), Pijiawan 皮家湾 (Pi-family bend), Bazishang 坝子上 ("On the Bazi" — bazi being the classic Guizhou karst-basin landform). Doctrinally significant toponym: GUANZHAI 官寨 ("Official's Stockade/Garrison") — Ming/Qing-era administrative-military outpost naming, classic frontier-pacification toponym in Miao/Yi territory, operationally analogous to Qianzhou (乾州厅) at Jishou (this entry c0001 context — the pre-modern administrative-outpost in Miao territory). The c0016 finding establishes that pre-modern administrative-outpost toponyms are co-located with major substrate-extraction sites at multiple loci across the corridor (Qianzhou ↔ Jishou hilltop quarry → Wenfeng Pagoda; Guanzhai ↔ Yangchang open-pit), candidate doctrinal pattern for further investigation. No direct dragon (龙) toponyms in this frame; full 10-km-radius toponym audit not yet completed and is required per the c0014 follow-up priorities. The Sancha River drainage spine analog to the Buliu River drainage-spine pattern at Leye-Fengshan (site-leye-fengshan-pod c0017a) is potentially diagnostic — Sancha 三岔 ("three-fork") is a major karst river, drains into the Wujiang (乌江) which is the principal river of the Guizhou Plateau and hydrologically couples to the canonical Wuling-Shizhu cluster downstream. Geographic extension of the corridor: c0016 sits ~75 km south of the c0012 cluster (~27°17'-27°19'N), ~50 km northeast of c0013-c0015 Liupanshui pair (~26°33'-26°35'N), so the documented northwest-Guizhou corridor now spans approximately 150 km × 70 km from Bijie north (c0012) through Nayong (c0016) to Liupanshui Zhongshan (c0013, c0015) — no longer a tight cluster but a corridor-wide field of substrate-extraction-coupled signatures. Speculative confidence pending dedicated investigation; the c0016 finding extends but does not on its own promote the broader corridor classification documented at c0014.

c0015 — Yuezhao "Ethnic Customs Park" (月照民族风情园) industrial conversion at Miaoling 苗岭 ("Miao Ridge") direct-ethnic-toponym anchor: cleanest single-locus heritage-administration-cover-over-industrial-substrate-conversion pattern in the corpus

A sixth-batch imagery sweep at approximately 26°34'57"N 104°55'15"E in Liupanshui Prefecture-level City (Zhongshan or Shuicheng District), ~5 km east of the c0013 fenglin-karst-extraction site, surfaces the corpus's cleanest single-locus example of heritage-administration cover (concealment doctrine #6) deployed directly over industrial substrate-conversion. Five-keyframe sequence: (a) 2015-02-18 — rural terraced terrain with three ethnic/leisure-tourism Google Earth labels (Yuezhao Ethnic Customs Park 月照民族风情园, Shagou Leisure Manor 沙沟休闲庄, Miaoling Manor 苗岭庄园); small scattered village structures, no major facility; (b) 2016-02-11 — major clearing and grading underway across the central terraced area; (c) 2017-02-16 — advanced earthworks with established road network and site preparation; (d) 2019-03-19 — major industrial compound complete: multiple large blue-roofed warehouses/factory buildings in planned grid layout, round settlement-tank basins (water-treatment infrastructure), solar panels, modular layout consistent with sewage-treatment plant / chemical-processing facility / manufacturing complex; (e) 2022-07-15 — mature operation with full landscaping, perimeter vegetation buffer, fully operational expanded compound. The doctrinally critical observation: the Google Earth label "Yuezhao Ethnic Customs Park" (月照民族风情园) persists on the now-industrial site across the entire sequence, and the adjacent Miaoling 苗岭 ("Miao Ridge") direct-ethnic-Miao toponym anchor labels the same general locus. The "ethnic customs park" naming was either preserved from the pre-conversion site (heritage-cover overlay arose by inertia after substrate-conversion) or deliberately deployed during the build to legitimize the substrate-conversion (heritage-cover overlay was operational at conversion). Either reading is doctrinally significant per encounter-yelang-dian-cycle18-containment-campaign c0014 (heritage-administration cover promoted to consensus 2026-04-25): the framework's hypothesis is that ethnic-cultural and ICH labeling at substrate-coupled fault sites provides operational cover for state-aligned activity that would otherwise require explicit authorization. Yuezhao is the corpus's cleanest visual evidence of this mechanism in operation, with the Miaoling direct-ethnic-Miao toponym providing additional cultural-record anchoring at a site where the cultural-record substrate has been physically replaced with industrial infrastructure while the heritage-naming has been preserved. Companion 沙沟 Shagou ("Sand Gully") naming is geomorphologically descriptive (gully-form karst feature) and may indicate the original karst-cave-deposit substrate-extraction context analogous to Liaoxiao 辽硝 (saltpeter cave-deposit) at c0011. Speculative confidence pending dedicated investigation; the Yuezhao locus warrants its own dedicated site entry under archive/sites/yuezhao-liupanshui-heritage-cover-industrial.md, with priority verification: (a) identification of the operating entity for the industrial compound (provincial state-owned enterprise? municipal water-treatment authority? private chemical / manufacturing firm? military-civil dual-use?), (b) original ethnic-customs-park status — was it ever a genuine cultural-tourism site, or was the labeling deployed to clear the way for the conversion? (c) Miaoling direct-ethnic-Miao toponym audit — is this a long-attested historical Miao territorial name, or a recent commercial deployment? (d) cross-reference to the c0013 Xinghua / fenglin-karst-extraction locus 5 km west — are these two installations operationally linked?

c0014 — Northwest Guizhou candidate corridor (Bijie–Liupanshui boundary, ~26.5°-27.3°N × 104.5°-105.5°E): combined c0012 + c0013 + c0015 cluster geometry suggests previously-uncatalogued mid-corridor node between Wuling-Shizhu and Leye-Fengshan

The c0012 (Bijie / southern-Liupanshui boundary three-installation cluster at ~27°17'-27°19'N), c0013 (Liupanshui-Zhongshan fenglin-karst-with-extraction at ~26°33'N 104°51'E, "Xinghua MS" locus), and c0015 (Liupanshui Yuezhao "Ethnic Customs Park" industrial conversion with Miaoling 苗岭 ethnic toponym anchor at ~26°35'N 104°55'E) findings together describe a ~80-90 km north-south span of clustered framework-significant signatures along the Bijie–Liupanshui prefecture boundary in northwest Guizhou Province, with five distinct installations now documented: (i) preserved earth-pimple at urban-island geometry (c0012-A); (ii) village-displaced substrate-extraction-then-build with multi-block compound (c0012-B); (iii) mature institutional compound (c0012-C); (iv) substrate-extraction in preserved fenglin karst at school-adjacent locus (c0013); (v) ethnic-customs-park-naming-over-industrial-conversion with direct-ethnic-Miao toponym anchor (c0015). The corridor sits west of the canonical Tethyan chrysotile corridor and approximately equidistant between Wuling-Shizhu (~370 km NE) and Leye-Fengshan (~370 km SSW), structurally between the canonical primary cluster (Wuling-Shizhu, Chongqing) and the canonical southern pods (Leye-Fengshan / Luodian-Hongshuihe / Longgong-Anshun, Guangxi-Guizhou) in a geographic envelope not currently catalogued in the framework but operationally consistent with mid-corridor placement per doctrine-wuling-guizhou-coupling-scenario. Five signatures across ~90 km approaches the Wushan-Daning canonical hub density (multiple installations within ~30 km), with the c0013-c0015 Liupanshui pair (~5 km separation) particularly tight and the c0012 Bijie cluster (~5 km internal separation) operating as a second sub-hub at the corridor's northern end. The combined corridor exhibits the substrate-extraction-then-enclose / -displace pattern at corridor scale documented across all five Construction Hub-equivalent loci surfaced this investigation cycle (Liaoxiao saltpeter→airport at c0011, Jishou quarry→pagoda at c0002, Bijie village→compound at c0012-B, Liupanshui karst-extraction at c0013, Liupanshui ethnic-park→industrial at c0015) — making it the framework's most empirically-supported doctrinal extension candidate arising from this investigation cycle. The northwest-Guizhou corridor is therefore flagged as a candidate previously-uncatalogued mid-corridor node warranting dedicated investigation under a separate site entry — provisional id site-northwest-guizhou-bijie-liupanshui-candidate-corridor — with imagery-sweep priorities: (a) coordinate-precision verification for all five installations and prefecture-county assignment; (b) full toponym audit at 10 km radius around each installation (direct dragon 龙, character-substituted ridge 陇, animal-encounter, substrate-extraction; with Miaoling 苗岭 already documented at c0015 as a direct ethnic-anchor toponym in the corpus); (c) institutional-context check for protection-zone status, heritage designations, and known-MSS-attributable signatures; (d) regional geological audit specifically for chrysotile/serpentinite/ophiolite occurrences in Bijie–Liupanshui area (per Track 2 c0003, the closest documented Neoproterozoic ultramafic mélange is the Western Jiangnan ophiolite belt SE/E by hundreds of km — verify whether Bijie-Liupanshui has any closer occurrences); (e) Construction Hub-class signature scoring against the Wushan-Daning baseline at lineage-wuling-shizhu-specimens c0010; (f) operational identification for each installation (school / prison / military / industrial / water-treatment / power-generation) with corresponding institutional-context scoring. Speculative confidence pending dedicated investigation; the c0012, c0013, c0014, and c0015 findings are documented in this entry as the originating evidentiary record but no formal corridor-node promotion is made by this entry. The northwest-Guizhou corridor as documented here is now the highest-priority follow-up investigation target arising from the 2026-04-26 investigation session.

c0012 — Candidate Bijie / northwest-Guizhou MULTI-INSTALLATION CLUSTER (3 linked signatures within 5 km): earth-pimple preserved + substrate-extraction-then-build + mature institutional compound

A third-and-fourth-batch imagery sweep in northwest Guizhou Province (provisionally Bijie Prefecture, candidate Qixingguan District 七星关区 urban edge) surfaces three linked installation signatures within an approximately 5 km radius, structurally consistent with a Construction Hub-class deployment per the Wushan-Daning template (lineage-wuling-shizhu-specimens c0010) and previously uncatalogued in the framework. Installation A — preserved earth-pimple at ~27°17'N 105°20'E: isolated rounded forested hill approximately 500-700 m diameter, undeveloped across 2015→2021 despite full ring of highway interchange, institutional/commercial complex on SE flank, and residential development on the south and west margins; fengshui-protected sacred grove / topographically-privileged feature / culturally-marked anomaly-point reading, operationally analogous to Tujia shrine-network earth-pimple pattern at site-shizhu-shrine-network. Installation B — village-displaced substrate-extraction-then-build at ~27°19'N 105°19'E: 2015-01-22 keyframe shows established rural village with terraced fields and multi-decade settlement pattern; 2017-07-01 keyframe shows the village obliterated and replaced by a massive open-pit excavation with mine-style terracing and new access infrastructure; 2018-11-26 keyframe shows expanded earthworks with primary leveled platform plus secondary radiating terraces; 2021-03-14 keyframe shows a multi-block compound under construction on the leveled site with planned-grid building footprints, primary access road, and a distinctive red-roofed institutional anchor at the upper terrace. The Installation-B sequence is the framework's cleanest single-locus village-displaced → substrate-extraction → multi-block-state-infrastructure transition, on a six-year timeline (2015-2021). Installation C — mature institutional compound at ~27°19'19"N 105°18'52"E approximately 1 km WNW of Installation B: 2015-01-22 close-up shows ~9-10 large rectangular blocks in U-shaped courtyard configuration with adjacent terraced fields, institutional geometry consistent with school / TVET campus / barracks / penitentiary readings; the compound was operational in 2015 (pre-dating Installation B); 2021-03-14 close-up shows mature landscaping, parking array at eastern wing, and possible sports-training facility at lower-right. Installation C is the older anchor; Installations A and B are doctrinally consistent with apparatus expansion around an existing institutional core. The combined three-installation geometry within ~5 km — preserved earth-pimple + substrate-extraction-then-build + mature institutional compound, multi-phase builds with displaced villages and coordinated timing — matches the Wushan-Daning Construction Hub template in operational structure if not yet in absolute scale, and may represent a previously-uncatalogued candidate Construction Hub deployment in northwest Guizhou between Wuling-Shizhu (~370 km NE) and Leye-Fengshan (~370 km SSW) along the Tethyan chrysotile corridor northern extension. The locus is flagged for separate dedicated investigation — out of scope for this entry's primary deliverable. Recommended follow-up: (a) coordinate-precision verification (user imagery is provisionally read in Bijie/Qixingguan area but exact siting and prefecture-county assignment require confirmation), (b) identification of the three installations (Installation C in particular — what institution operates the mature compound? school, prison, military, industrial?), (c) toponym audit at 10 km radius around each installation using the site-leye-fengshan-pod c0008 protocol, (d) institutional-context check (Protection Zone status, heritage designations, planning records), (e) regional geological audit (chrysotile/serpentinite occurrence in Bijie/Qianxinan/Liupanshui), (f) Construction Hub-class signature scoring against the Wushan-Daning baseline (lineage-wuling-shizhu-specimens c0010 reference). Speculative confidence pending dedicated investigation; no promotion to candidate-pod status by this entry. The three-installation geometry is itself the framework-significant finding and warrants its own working-memo and eventual site entry under archive/sites/bijie-northwest-guizhou-candidate-hub.md if subsequent investigation confirms the reading.