# Relationship history for MSHA mine 1000082

Current hierarchy: **Americas Gold and Silver Corporation → U.S. Silver-Idaho, Inc. → Galena**

- Valid-time bounds: inclusive, date granularity
- Null end: open-ended in the upstream history row; not independent proof of present control
- Transaction-time observation: 2026-10-13T11:19:05.459773+00:00

## Valid-time edges

- **operator_operates_mine:** Asarco Inc → Galena; 1950-01-01 to 1994-12-31; source msha-controller-operator-history
- **controller_controls_mine:** Asarco Inc → Galena; 1950-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Asarco Inc → Asarco Inc; 1950-01-01 to 1994-12-31; source msha-controller-operator-history
- **operator_operates_mine:** U.S. Silver-Idaho, Inc. → Galena; 1995-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Coeur Mining, Inc. → Galena; 1995-01-01 to 2006-06-11; source msha-controller-operator-history
- **controller_controls_operator:** Coeur Mining, Inc. → U.S. Silver-Idaho, Inc.; 1995-01-01 to 2006-06-11; source msha-controller-operator-history
- **controller_controls_mine:** U S Silver Corporation → Galena; 2006-06-12 to 2012-10-01; source msha-controller-operator-history
- **controller_controls_operator:** U S Silver Corporation → U.S. Silver-Idaho, Inc.; 2006-06-12 to 2012-10-01; source msha-controller-operator-history
- **controller_controls_mine:** U S Silver & Gold Inc → Galena; 2012-10-02 to 2019-09-09; source msha-controller-operator-history
- **controller_controls_operator:** U S Silver & Gold Inc → U.S. Silver-Idaho, Inc.; 2012-10-02 to 2019-09-09; source msha-controller-operator-history
- **controller_controls_mine:** Americas Gold and Silver Corporation → Galena; 2019-09-10 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Americas Gold and Silver Corporation → U.S. Silver-Idaho, Inc.; 2019-09-10 to current/open; source msha-controller-operator-history