{"data":{"schemaVersion":"realm.mine-profile.v1","generatedAt":"2026-10-13T11:26:59.401Z","identity":{"mine_id":"2901938","name":"Ivanhoe-Emporia","status":"Abandoned","status_date":"1988-06-13","mine_type":"Underground","coal_metal":"M","commodity":"Silver Ore","state":"NM","county":"Sierra","nearest_town":"","operator_id":"L06398","operator_name":"St Cloud Mining Company","controller_id":"0191381","controller_name":"Equalizer Inc","district":"M5","office":"Albuquerque NM Field Office","employees":0,"latitude":null,"longitude":null},"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":"2901938","name":"Ivanhoe-Emporia"},"operator":{"type":"operator","id":"L06398","name":"St Cloud Mining Company"},"controller":{"type":"controller","id":"0191381","name":"Equalizer Inc"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-13T11:19:05.459773+00:00"}},"edges":[{"type":"controller_controls_mine","subject":{"type":"controller","id":"M05093","name":"Goldfield Corp"},"object":{"type":"mine","id":"2901938","name":"Ivanhoe-Emporia"},"validFrom":"1950-01-01","validTo":"2002-12-03","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2901938|M05093|1950-01-01|2002-12-03"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"L06702","name":"Mimbres Resources Development Company Ltd"},"object":{"type":"mine","id":"2901938","name":"Ivanhoe-Emporia"},"validFrom":"1983-09-01","validTo":"1987-04-15","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2901938|L06702|1983-09-01|1987-04-15"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M05339","name":"Lozelle T"},"object":{"type":"mine","id":"2901938","name":"Ivanhoe-Emporia"},"validFrom":"1983-09-01","validTo":"1988-05-17","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2901938|M05339|1983-09-01|1988-05-17"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M05339","name":"Lozelle T"},"object":{"type":"operator","id":"L06702","name":"Mimbres Resources Development Company Ltd"},"validFrom":"1983-09-01","validTo":"1987-04-15","current":false,"derived":true,"evidenceMineId":"2901938","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2901938|L06702|1983-09-01|M05339|1983-09-01|134328"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"L06398","name":"St Cloud Mining Company"},"object":{"type":"mine","id":"2901938","name":"Ivanhoe-Emporia"},"validFrom":"1987-04-16","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2901938|L06398|1987-04-16|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M05093","name":"Goldfield Corp"},"object":{"type":"operator","id":"L06398","name":"St Cloud Mining Company"},"validFrom":"1987-04-16","validTo":"2002-12-03","current":false,"derived":true,"evidenceMineId":"2901938","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2901938|L06398|1987-04-16|M05093|1950-01-01|133633"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0041943","name":"Imagin Minerals Incorporated"},"object":{"type":"mine","id":"2901938","name":"Ivanhoe-Emporia"},"validFrom":"2002-12-04","validTo":"2024-12-12","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2901938|0041943|2002-12-04|2024-12-12"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0041943","name":"Imagin Minerals Incorporated"},"object":{"type":"operator","id":"L06398","name":"St Cloud Mining Company"},"validFrom":"2002-12-04","validTo":"2024-12-12","current":false,"derived":true,"evidenceMineId":"2901938","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2901938|L06398|1987-04-16|0041943|2002-12-04|3336"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0191381","name":"Equalizer Inc"},"object":{"type":"mine","id":"2901938","name":"Ivanhoe-Emporia"},"validFrom":"2024-12-13","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2901938|0191381|2024-12-13|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0191381","name":"Equalizer Inc"},"object":{"type":"operator","id":"L06398","name":"St Cloud Mining Company"},"validFrom":"2024-12-13","validTo":null,"current":true,"derived":true,"evidenceMineId":"2901938","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2901938|L06398|1987-04-16|0191381|2024-12-13|40725"}}],"coverage":{"historyRecords":4,"edgeCount":10,"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":"1988-06-13","lastDate":"1988-06-13","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":"1983-09-01","lastDate":"1987-04-16","metrics":{"recentRows":0,"currentOperatorTenures":3,"completedOperatorTenures":1},"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/2901938/safety","description":"Full-period safety series, top CFR sections and paginated activity. Requires PostgreSQL."},"silica":{"href":"/api/v1/mines/2901938/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":"2901938","dataSource":"postgres","snapshotId":"2026-10-13T11:19:05.459773+00:00","completedAt":"2026-10-13T11:26:59.401Z","sourceCount":20,"totalRows":17906804}}