{"data":{"schemaVersion":"realm.mine-profile.v1","generatedAt":"2026-10-13T11:26:59.401Z","identity":{"mine_id":"2301771","name":"Richwoods Mine","status":"Abandoned","status_date":"1991-01-02","mine_type":"Surface","coal_metal":"M","commodity":"Barite Barium Ore","state":"MO","county":"Washington","nearest_town":"","operator_id":"L03650","operator_name":"De Soto Mining Company Inc","controller_id":"M04088","controller_name":"Galveston Houston Company","district":"C10","office":"Rolla MO Field Office","employees":0,"latitude":null,"longitude":null},"coverage":{"contributingSources":3,"registeredSources":20,"sourceRows":9},"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":"2301771","name":"Richwoods Mine"},"operator":{"type":"operator","id":"L03650","name":"De Soto Mining Company Inc"},"controller":{"type":"controller","id":"M04088","name":"Galveston Houston Company"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-13T11:19:05.459773+00:00"}},"edges":[{"type":"controller_controls_mine","subject":{"type":"controller","id":"M04088","name":"Galveston Houston Company"},"object":{"type":"mine","id":"2301771","name":"Richwoods Mine"},"validFrom":"1950-01-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2301771|M04088|1950-01-01|"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"L03650","name":"De Soto Mining Company Inc"},"object":{"type":"mine","id":"2301771","name":"Richwoods Mine"},"validFrom":"1979-12-01","validTo":"1984-02-20","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2301771|L03650|1979-12-01|1984-02-20"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M04088","name":"Galveston Houston Company"},"object":{"type":"operator","id":"L03650","name":"De Soto Mining Company Inc"},"validFrom":"1979-12-01","validTo":"1984-02-20","current":false,"derived":true,"evidenceMineId":"2301771","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2301771|L03650|1979-12-01|M04088|1950-01-01|131033"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"L07075","name":"Agers Mining Inc"},"object":{"type":"mine","id":"2301771","name":"Richwoods Mine"},"validFrom":"1984-02-21","validTo":"1986-07-28","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2301771|L07075|1984-02-21|1986-07-28"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M00666","name":"Agers David A"},"object":{"type":"mine","id":"2301771","name":"Richwoods Mine"},"validFrom":"1984-02-21","validTo":"1986-07-28","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2301771|M00666|1984-02-21|1986-07-28"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M00666","name":"Agers David A"},"object":{"type":"operator","id":"L07075","name":"Agers Mining Inc"},"validFrom":"1984-02-21","validTo":"1986-07-28","current":false,"derived":true,"evidenceMineId":"2301771","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2301771|L07075|1984-02-21|M00666|1984-02-21|113983"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"L03650","name":"De Soto Mining Company Inc"},"object":{"type":"mine","id":"2301771","name":"Richwoods Mine"},"validFrom":"1986-07-29","validTo":"1986-09-28","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2301771|L03650|1986-07-29|1986-09-28"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M04088","name":"Galveston Houston Company"},"object":{"type":"operator","id":"L03650","name":"De Soto Mining Company Inc"},"validFrom":"1986-07-29","validTo":"1986-09-28","current":false,"derived":true,"evidenceMineId":"2301771","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2301771|L03650|1986-07-29|M04088|1950-01-01|131034"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"L08843","name":"Williams Mining Company Inc"},"object":{"type":"mine","id":"2301771","name":"Richwoods Mine"},"validFrom":"1986-09-29","validTo":"1988-06-28","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2301771|L08843|1986-09-29|1988-06-28"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M06994","name":"Williams Arthur E"},"object":{"type":"mine","id":"2301771","name":"Richwoods Mine"},"validFrom":"1986-09-29","validTo":"1988-06-28","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2301771|M06994|1986-09-29|1988-06-28"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M06994","name":"Williams Arthur E"},"object":{"type":"operator","id":"L08843","name":"Williams Mining Company Inc"},"validFrom":"1986-09-29","validTo":"1988-06-28","current":false,"derived":true,"evidenceMineId":"2301771","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2301771|L08843|1986-09-29|M06994|1986-09-29|139836"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"L03650","name":"De Soto Mining Company Inc"},"object":{"type":"mine","id":"2301771","name":"Richwoods Mine"},"validFrom":"1988-06-29","validTo":"1988-11-20","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2301771|L03650|1988-06-29|1988-11-20"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M04088","name":"Galveston Houston Company"},"object":{"type":"operator","id":"L03650","name":"De Soto Mining Company Inc"},"validFrom":"1988-06-29","validTo":"1988-11-20","current":false,"derived":true,"evidenceMineId":"2301771","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2301771|L03650|1988-06-29|M04088|1950-01-01|131035"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"L10701","name":"Richwoods Mining Company"},"object":{"type":"mine","id":"2301771","name":"Richwoods Mine"},"validFrom":"1988-11-21","validTo":"1989-05-01","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2301771|L10701|1988-11-21|1989-05-01"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M08303","name":"Johnson Sandra G"},"object":{"type":"mine","id":"2301771","name":"Richwoods Mine"},"validFrom":"1988-11-21","validTo":"1989-05-01","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2301771|M08303|1988-11-21|1989-05-01"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M08303","name":"Johnson Sandra G"},"object":{"type":"operator","id":"L10701","name":"Richwoods Mining Company"},"validFrom":"1988-11-21","validTo":"1989-05-01","current":false,"derived":true,"evidenceMineId":"2301771","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2301771|L10701|1988-11-21|M08303|1988-11-21|143074"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"L03650","name":"De Soto Mining Company Inc"},"object":{"type":"mine","id":"2301771","name":"Richwoods Mine"},"validFrom":"1989-05-02","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2301771|L03650|1989-05-02|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M04088","name":"Galveston Houston Company"},"object":{"type":"operator","id":"L03650","name":"De Soto Mining Company Inc"},"validFrom":"1989-05-02","validTo":null,"current":true,"derived":true,"evidenceMineId":"2301771","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2301771|L03650|1989-05-02|M04088|1950-01-01|131036"}}],"coverage":{"historyRecords":7,"edgeCount":18,"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":"1991-01-02","lastDate":"1991-01-02","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":7,"firstDate":"1979-12-01","lastDate":"1989-05-02","metrics":{"recentRows":0,"currentOperatorTenures":1,"completedOperatorTenures":6},"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/2301771/safety","description":"Full-period safety series, top CFR sections and paginated activity. Requires PostgreSQL."},"silica":{"href":"/api/v1/mines/2301771/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":"2301771","dataSource":"postgres","snapshotId":"2026-10-13T11:19:05.459773+00:00","completedAt":"2026-10-13T11:26:59.401Z","sourceCount":20,"totalRows":17906804}}