{"data":{"schemaVersion":"realm.mine-profile.v1","generatedAt":"2026-10-13T11:26:59.401Z","identity":{"mine_id":"4607582","name":"Mine No 20","status":"Abandoned","status_date":"2024-03-19","mine_type":"Underground","coal_metal":"C","commodity":"Coal (Bituminous)","state":"WV","county":"Mcdowell","nearest_town":"Bradshaw","operator_id":"P23712","operator_name":"Alpine Development Company","controller_id":"C12752","controller_name":"American Metals & Coal International Inc","district":"C04","office":"Beckley District","employees":0,"latitude":37.379167,"longitude":-81.895556},"coverage":{"contributingSources":5,"registeredSources":20,"sourceRows":11},"relationships":{"schemaVersion":"realm.temporal-relationships.v1","temporalSemantics":{"validTime":{"granularity":"date","bounds":"inclusive","nullStart":"start date not published in the upstream history row","nullEnd":"open-ended in the upstream history row; not independent proof of present control"},"transactionTime":{"observedAt":"2026-10-13T11:19:05.459773+00:00","meaning":"time the checksum-addressed MDRS artifacts were observed by the PostgreSQL ingestion"},"derivation":{"controllerControlsOperator":"intersection of controller and operator valid-time intervals evidenced through this mine","currentIdentity":"current controller and operator are asserted only by the MDRS Mines snapshot"}},"current":{"mine":{"type":"mine","id":"4607582","name":"Mine No 20"},"operator":{"type":"operator","id":"P23712","name":"Alpine Development Company"},"controller":{"type":"controller","id":"C12752","name":"American Metals & Coal International Inc"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-13T11:19:05.459773+00:00"}},"edges":[{"type":"operator_operates_mine","subject":{"type":"operator","id":"P19908","name":"Rock E Coal Company"},"object":{"type":"mine","id":"4607582","name":"Mine No 20"},"validFrom":"1988-09-01","validTo":"1992-02-29","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4607582|P19908|1988-09-01|1992-02-29"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C13610","name":"Hagy Thomas"},"object":{"type":"mine","id":"4607582","name":"Mine No 20"},"validFrom":"1988-09-01","validTo":"1992-02-29","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4607582|C13610|1988-09-01|1992-02-29"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C13610","name":"Hagy Thomas"},"object":{"type":"operator","id":"P19908","name":"Rock E Coal Company"},"validFrom":"1988-09-01","validTo":"1992-02-29","current":false,"derived":true,"evidenceMineId":"4607582","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4607582|P19908|1988-09-01|C13610|1988-09-01|90625"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P21922","name":"Silverado Mining Company Inc"},"object":{"type":"mine","id":"4607582","name":"Mine No 20"},"validFrom":"1992-03-01","validTo":"1993-05-20","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4607582|P21922|1992-03-01|1993-05-20"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C10486","name":"Bailey Howard"},"object":{"type":"mine","id":"4607582","name":"Mine No 20"},"validFrom":"1992-03-01","validTo":"1993-05-20","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4607582|C10486|1992-03-01|1993-05-20"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C10486","name":"Bailey Howard"},"object":{"type":"operator","id":"P21922","name":"Silverado Mining Company Inc"},"validFrom":"1992-03-01","validTo":"1993-05-20","current":false,"derived":true,"evidenceMineId":"4607582","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4607582|P21922|1992-03-01|C10486|1992-03-01|82102"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P22364","name":"Fox Chase Coal Inc"},"object":{"type":"mine","id":"4607582","name":"Mine No 20"},"validFrom":"1993-05-21","validTo":"1994-11-30","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4607582|P22364|1993-05-21|1994-11-30"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C14855","name":"Mark  Lester"},"object":{"type":"mine","id":"4607582","name":"Mine No 20"},"validFrom":"1993-05-21","validTo":"1995-02-28","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4607582|C14855|1993-05-21|1995-02-28"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C14855","name":"Mark  Lester"},"object":{"type":"operator","id":"P22364","name":"Fox Chase Coal Inc"},"validFrom":"1993-05-21","validTo":"1994-11-30","current":false,"derived":true,"evidenceMineId":"4607582","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4607582|P22364|1993-05-21|C14855|1993-05-21|94079"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P22977","name":"Panther Creek Corp"},"object":{"type":"mine","id":"4607582","name":"Mine No 20"},"validFrom":"1994-12-01","validTo":"1997-09-29","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4607582|P22977|1994-12-01|1997-09-29"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C14086","name":"David  Hopkins"},"object":{"type":"mine","id":"4607582","name":"Mine No 20"},"validFrom":"1994-12-01","validTo":"1997-09-29","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4607582|C14086|1994-12-01|1997-09-29"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C14086","name":"David  Hopkins"},"object":{"type":"operator","id":"P22977","name":"Panther Creek Corp"},"validFrom":"1994-12-01","validTo":"1997-09-29","current":false,"derived":true,"evidenceMineId":"4607582","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4607582|P22977|1994-12-01|C14086|1994-12-01|91965"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C12752","name":"American Metals & Coal International Inc"},"object":{"type":"mine","id":"4607582","name":"Mine No 20"},"validFrom":"1996-04-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4607582|C12752|1996-04-01|"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P23712","name":"Alpine Development Company"},"object":{"type":"mine","id":"4607582","name":"Mine No 20"},"validFrom":"1997-09-30","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4607582|P23712|1997-09-30|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C12752","name":"American Metals & Coal International Inc"},"object":{"type":"operator","id":"P23712","name":"Alpine Development Company"},"validFrom":"1997-09-30","validTo":null,"current":true,"derived":true,"evidenceMineId":"4607582","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4607582|P23712|1997-09-30|C12752|1996-04-01|87787"}}],"coverage":{"historyRecords":5,"edgeCount":15,"intervalAnomalies":0,"sourceDatasetId":"msha-controller-operator-history"}},"sources":[{"id":"msha-addresses","name":"Addresses of Record","domains":["identity","logistics"],"products":["entity resolution","address history","facility geocoding"],"rowCount":1,"firstDate":"2024-03-19","lastDate":"2024-03-19","metrics":{},"periods":{},"recentRecords":[]},{"id":"msha-controller-operator-history","name":"Controller and Operator History","domains":["identity","compliance"],"products":["historical ownership attribution","operator transitions","valid-time joins"],"rowCount":5,"firstDate":"1988-09-01","lastDate":"1997-09-30","metrics":{"recentRows":0,"currentOperatorTenures":1,"completedOperatorTenures":4},"periods":{},"recentRecords":[]},{"id":"msha-inspections","name":"Inspections","domains":["safety","compliance"],"products":["inspection mix","on-site hours","event context","citation rate denominator"],"rowCount":2,"firstDate":"2018-08-16","lastDate":"2024-03-27","metrics":{"inspectors":2,"recentRows":1,"onSiteHours":2.25,"inspectionHours":6.25,"inspectionSamples":0},"periods":{},"recentRecords":[{"SOURCE_ROW_NUMBER":"631947","EVENT_NO":"7034762","INSPECTION_BEGIN_DT":"03/27/2024","INSPECTION_END_DT":"03/27/2024","ACTIVITY_CODE":"E16","ACTIVITY":"Spot Inspection","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"2.25","SUM_TOTAL_ON_SITE_HOURS":".75","sourceDate":"2024-03-27"},{"SOURCE_ROW_NUMBER":"554373","EVENT_NO":"7004490","INSPECTION_BEGIN_DT":"08/16/2018","INSPECTION_END_DT":"08/16/2018","ACTIVITY_CODE":"E28","ACTIVITY":"Mine Idle Activity","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"4","SUM_TOTAL_ON_SITE_HOURS":"1.5","sourceDate":"2018-08-16"}]},{"id":"msha-mine-production-quarterly","name":"Mine Employment and Production — Quarterly","domains":["production","safety","compliance"],"products":["production trend","employee hours","rate denominators","seasonality"],"rowCount":2,"firstDate":null,"lastDate":null,"metrics":{},"periods":{"2000-Q2":{"hours":0,"employees":0,"production":0},"2000-Q1":{"hours":0,"employees":0,"production":0}},"recentRecords":[]},{"id":"msha-mines","name":"Mines","domains":["identity","production","logistics"],"products":["mine identity","status","commodity","location","operator and controller"],"rowCount":1,"firstDate":null,"lastDate":null,"metrics":{},"periods":{},"recentRecords":[]}],"safety":{"href":"/api/v1/mines/4607582/safety","description":"Full-period safety series, top CFR sections and paginated activity. Requires PostgreSQL."},"silica":{"href":"/api/v1/mines/4607582/silica","description":"Dedicated silica records, measurements, sample status and trends. Defaults to the snapshot year; use year=all for history."},"externalContext":{"eia":null,"title30":{"snapshot":{"chapterCount":6,"featuredSectionCount":100,"latestAmendedOn":"2026-08-14","latestIssueDate":"2026-08-14","partCount":206,"sectionCount":5954,"upToDateAsOf":"2026-08-19"},"regulations":[],"fullCorpus":"/data/title30-sections.json"}}},"meta":{"representation":"json","mineId":"4607582","dataSource":"postgres","snapshotId":"2026-10-13T11:19:05.459773+00:00","completedAt":"2026-10-13T11:26:59.401Z","sourceCount":20,"totalRows":17906804}}