# Relationship history for MSHA mine 1000085

Current hierarchy: **Americas Gold and Silver Corporation → Crescent Silver L.L.C. → Crescent Mine**

- Valid-time bounds: inclusive, date granularity
- Null end: open-ended in the upstream history row; not independent proof of present control
- Transaction-time observation: 2026-10-17T05:35:58.500035+00:00

## Valid-time edges

- **operator_operates_mine:** Bunker Hill Company → Crescent Mine; 1950-01-01 to 1982-11-21; source msha-controller-operator-history
- **controller_controls_mine:** Gulf USA Corp → Crescent Mine; 1950-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Gulf USA Corp → Bunker Hill Company; 1950-01-01 to 1982-11-21; source msha-controller-operator-history
- **operator_operates_mine:** Bunker Limited Partnership → Crescent Mine; 1982-11-22 to 1986-06-01; source msha-controller-operator-history
- **controller_controls_mine:** BH Properties Inc  et al → Crescent Mine; 1982-11-22 to 1986-06-01; source msha-controller-operator-history
- **controller_controls_operator:** BH Properties Inc  et al → Bunker Limited Partnership; 1982-11-22 to 1986-06-01; source msha-controller-operator-history
- **operator_operates_mine:** Bunker Hill Mining Company (Us) Inc → Crescent Mine; 1986-06-02 to 2007-02-28; source msha-controller-operator-history
- **controller_controls_mine:** Bunker Hill Mining Company Inc → Crescent Mine; 1986-06-02 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Bunker Hill Mining Company Inc → Bunker Hill Mining Company (Us) Inc; 1986-06-02 to 2007-02-28; source msha-controller-operator-history
- **operator_operates_mine:** Crescent Inc → Crescent Mine; 2007-03-01 to 2010-02-02; source msha-controller-operator-history
- **controller_controls_mine:** SNS Silver Corp → Crescent Mine; 2007-03-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** SNS Silver Corp → Crescent Inc; 2007-03-01 to 2010-02-02; source msha-controller-operator-history
- **operator_operates_mine:** United Mine Services → Crescent Mine; 2010-02-03 to 2014-03-04; source msha-controller-operator-history
- **controller_controls_mine:** Greg  Stewart et al → Crescent Mine; 2010-02-03 to 2013-09-04; source msha-controller-operator-history
- **controller_controls_operator:** Greg  Stewart et al → United Mine Services; 2010-02-03 to 2013-09-04; source msha-controller-operator-history
- **controller_controls_mine:** United Silver Corp → Crescent Mine; 2013-09-05 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** United Silver Corp → United Mine Services; 2013-09-05 to 2014-03-04; source msha-controller-operator-history
- **operator_operates_mine:** Crescent Silver L.L.C. → Crescent Mine; 2014-03-05 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Hale Capital Partners → Crescent Mine; 2014-03-05 to 2025-12-21; source msha-controller-operator-history
- **controller_controls_operator:** Hale Capital Partners → Crescent Silver L.L.C.; 2014-03-05 to 2025-12-21; source msha-controller-operator-history
- **controller_controls_mine:** Americas Gold and Silver Corporation → Crescent Mine; 2025-12-22 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Americas Gold and Silver Corporation → Crescent Silver L.L.C.; 2025-12-22 to current/open; source msha-controller-operator-history