{"data":{"schemaVersion":"realm.mine-profile.v1","generatedAt":"2026-10-13T11:26:59.401Z","identity":{"mine_id":"1800660","name":"Fetterolf #1","status":"Abandoned","status_date":"1985-07-03","mine_type":"Surface","coal_metal":"C","commodity":"Coal (Bituminous)","state":"MD","county":"Allegany","nearest_town":"Mt Savage","operator_id":"P07176","operator_name":"Fetterolf Mining Inc","controller_id":"C05461","controller_name":"Fetterolf Group Inc","district":"C03","office":"Bridgeport WV Field Office","employees":0,"latitude":39.6981,"longitude":-78.9167},"coverage":{"contributingSources":3,"registeredSources":20,"sourceRows":6},"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":"1800660","name":"Fetterolf #1"},"operator":{"type":"operator","id":"P07176","name":"Fetterolf Mining Inc"},"controller":{"type":"controller","id":"C05461","name":"Fetterolf Group Inc"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-13T11:19:05.459773+00:00"}},"edges":[{"type":"controller_controls_mine","subject":{"type":"controller","id":"C04793","name":"Wilhelm Gilbert"},"object":{"type":"mine","id":"1800660","name":"Fetterolf #1"},"validFrom":"1977-01-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1800660|C04793|1977-01-01|"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C05461","name":"Fetterolf Group Inc"},"object":{"type":"mine","id":"1800660","name":"Fetterolf #1"},"validFrom":"1977-07-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1800660|C05461|1977-07-01|"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P05750","name":"Wilhelm Coal Inc"},"object":{"type":"mine","id":"1800660","name":"Fetterolf #1"},"validFrom":"1978-06-01","validTo":"1978-07-26","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1800660|P05750|1978-06-01|1978-07-26"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C04793","name":"Wilhelm Gilbert"},"object":{"type":"operator","id":"P05750","name":"Wilhelm Coal Inc"},"validFrom":"1978-06-01","validTo":"1978-07-26","current":false,"derived":true,"evidenceMineId":"1800660","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1800660|P05750|1978-06-01|C04793|1977-01-01|66740"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P07176","name":"Fetterolf Mining Inc"},"object":{"type":"mine","id":"1800660","name":"Fetterolf #1"},"validFrom":"1978-07-27","validTo":"1979-05-22","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1800660|P07176|1978-07-27|1979-05-22"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C05461","name":"Fetterolf Group Inc"},"object":{"type":"operator","id":"P07176","name":"Fetterolf Mining Inc"},"validFrom":"1978-07-27","validTo":"1979-05-22","current":false,"derived":true,"evidenceMineId":"1800660","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1800660|P07176|1978-07-27|C05461|1977-07-01|68885"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P10437","name":"Frank Gerney Coal Company"},"object":{"type":"mine","id":"1800660","name":"Fetterolf #1"},"validFrom":"1979-05-23","validTo":"1980-09-01","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1800660|P10437|1979-05-23|1980-09-01"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C07962","name":"Gerney Frank"},"object":{"type":"mine","id":"1800660","name":"Fetterolf #1"},"validFrom":"1979-05-23","validTo":"1980-09-01","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1800660|C07962|1979-05-23|1980-09-01"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C07962","name":"Gerney Frank"},"object":{"type":"operator","id":"P10437","name":"Frank Gerney Coal Company"},"validFrom":"1979-05-23","validTo":"1980-09-01","current":false,"derived":true,"evidenceMineId":"1800660","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1800660|P10437|1979-05-23|C07962|1979-05-23|76071"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P07176","name":"Fetterolf Mining Inc"},"object":{"type":"mine","id":"1800660","name":"Fetterolf #1"},"validFrom":"1980-09-02","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1800660|P07176|1980-09-02|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C05461","name":"Fetterolf Group Inc"},"object":{"type":"operator","id":"P07176","name":"Fetterolf Mining Inc"},"validFrom":"1980-09-02","validTo":null,"current":true,"derived":true,"evidenceMineId":"1800660","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1800660|P07176|1980-09-02|C05461|1977-07-01|68886"}}],"coverage":{"historyRecords":4,"edgeCount":11,"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":"1985-07-03","lastDate":"1985-07-03","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":4,"firstDate":"1978-06-01","lastDate":"1980-09-02","metrics":{"recentRows":0,"currentOperatorTenures":1,"completedOperatorTenures":3},"periods":{},"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/1800660/safety","description":"Full-period safety series, top CFR sections and paginated activity. Requires PostgreSQL."},"silica":{"href":"/api/v1/mines/1800660/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":"1800660","dataSource":"postgres","snapshotId":"2026-10-13T11:19:05.459773+00:00","completedAt":"2026-10-13T11:26:59.401Z","sourceCount":20,"totalRows":17906804}}