{"data":{"schemaVersion":"realm.mine-profile.v1","generatedAt":"2026-10-13T11:26:59.401Z","identity":{"mine_id":"2601721","name":"Willow Creek Operation","status":"Abandoned","status_date":"1985-04-24","mine_type":"Surface","coal_metal":"M","commodity":"Gold Ore","state":"NV","county":"Pershing","nearest_town":"","operator_id":"L06769","operator_name":"Ken Mc Griffin","controller_id":"M05393","controller_name":"Mc Griffin Ken","district":"M7","office":"Elko NV Field Office","employees":0,"latitude":null,"longitude":null},"coverage":{"contributingSources":3,"registeredSources":20,"sourceRows":5},"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":"2601721","name":"Willow Creek Operation"},"operator":{"type":"operator","id":"L06769","name":"Ken Mc Griffin"},"controller":{"type":"controller","id":"M05393","name":"Mc Griffin Ken"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-13T11:19:05.459773+00:00"}},"edges":[{"type":"operator_operates_mine","subject":{"type":"operator","id":"L06767","name":"Willow Creek Placer Inc"},"object":{"type":"mine","id":"2601721","name":"Willow Creek Operation"},"validFrom":"1981-03-01","validTo":"1983-06-21","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2601721|L06767|1981-03-01|1983-06-21"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M05391","name":"Jenks Don A"},"object":{"type":"mine","id":"2601721","name":"Willow Creek Operation"},"validFrom":"1981-03-01","validTo":"1983-06-21","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2601721|M05391|1981-03-01|1983-06-21"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M05391","name":"Jenks Don A"},"object":{"type":"operator","id":"L06767","name":"Willow Creek Placer Inc"},"validFrom":"1981-03-01","validTo":"1983-06-21","current":false,"derived":true,"evidenceMineId":"2601721","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2601721|L06767|1981-03-01|M05391|1981-03-01|134463"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"L06768","name":"Ro-Mac Inc"},"object":{"type":"mine","id":"2601721","name":"Willow Creek Operation"},"validFrom":"1983-06-22","validTo":"1983-08-04","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2601721|L06768|1983-06-22|1983-08-04"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M05392","name":"Ro-Mac Inc"},"object":{"type":"mine","id":"2601721","name":"Willow Creek Operation"},"validFrom":"1983-06-22","validTo":"1983-08-04","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2601721|M05392|1983-06-22|1983-08-04"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M05392","name":"Ro-Mac Inc"},"object":{"type":"operator","id":"L06768","name":"Ro-Mac Inc"},"validFrom":"1983-06-22","validTo":"1983-08-04","current":false,"derived":true,"evidenceMineId":"2601721","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2601721|L06768|1983-06-22|M05392|1983-06-22|134464"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"L06769","name":"Ken Mc Griffin"},"object":{"type":"mine","id":"2601721","name":"Willow Creek Operation"},"validFrom":"1983-08-05","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2601721|L06769|1983-08-05|"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M05393","name":"Mc Griffin Ken"},"object":{"type":"mine","id":"2601721","name":"Willow Creek Operation"},"validFrom":"1983-08-05","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2601721|M05393|1983-08-05|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M05393","name":"Mc Griffin Ken"},"object":{"type":"operator","id":"L06769","name":"Ken Mc Griffin"},"validFrom":"1983-08-05","validTo":null,"current":true,"derived":true,"evidenceMineId":"2601721","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2601721|L06769|1983-08-05|M05393|1983-08-05|134465"}}],"coverage":{"historyRecords":3,"edgeCount":9,"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":"1985-04-24","lastDate":"1985-04-24","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":3,"firstDate":"1981-03-01","lastDate":"1983-08-05","metrics":{"recentRows":0,"currentOperatorTenures":1,"completedOperatorTenures":2},"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/2601721/safety","description":"Full-period safety series, top CFR sections and paginated activity. Requires PostgreSQL."},"silica":{"href":"/api/v1/mines/2601721/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":"2601721","dataSource":"postgres","snapshotId":"2026-10-13T11:19:05.459773+00:00","completedAt":"2026-10-13T11:26:59.401Z","sourceCount":20,"totalRows":17906804}}