# Relationship history for MSHA mine 0502402

Current hierarchy: **George  Christodoulou; David  Badner er al → Gold Hill Minerals Inc → Bueno 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: 2026-10-13T11:19:05.459773+00:00

## Valid-time edges

- **operator_operates_mine:** Bueno Coeur D'Alene Inc → Bueno Mine; 1950-01-01 to 1979-08-22; source msha-controller-operator-history
- **controller_controls_mine:** Bueno Coeur D'Alene Inc → Bueno Mine; 1950-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Bueno Coeur D'Alene Inc → Bueno Coeur D'Alene Inc; 1950-01-01 to 1979-08-22; source msha-controller-operator-history
- **operator_operates_mine:** Jamestown Mining Company → Bueno Mine; 1979-08-23 to 1984-07-24; source msha-controller-operator-history
- **controller_controls_mine:** Mehl Robert L → Bueno Mine; 1979-08-23 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Mehl Robert L → Jamestown Mining Company; 1979-08-23 to 1984-07-24; source msha-controller-operator-history
- **controller_controls_mine:** Patrick D  Maher → Bueno Mine; 1984-01-20 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Moritz Mining Company Inc → Bueno Mine; 1984-07-25 to 1985-06-24; source msha-controller-operator-history
- **controller_controls_operator:** Patrick D  Maher → Moritz Mining Company Inc; 1984-07-25 to 1985-06-24; source msha-controller-operator-history
- **operator_operates_mine:** Wassuck Mining Corp → Bueno Mine; 1985-06-25 to 1986-11-12; source msha-controller-operator-history
- **controller_controls_mine:** Western Gold & Uranium → Bueno Mine; 1985-06-25 to 1986-11-12; source msha-controller-operator-history
- **controller_controls_operator:** Western Gold & Uranium → Wassuck Mining Corp; 1985-06-25 to 1986-11-12; source msha-controller-operator-history
- **operator_operates_mine:** Van Dyke Minerals Ltd → Bueno Mine; 1986-11-13 to 2006-10-18; source msha-controller-operator-history
- **controller_controls_mine:** Van Dyke David → Bueno Mine; 1986-11-13 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Van Dyke David → Van Dyke Minerals Ltd; 1986-11-13 to 2006-10-18; source msha-controller-operator-history
- **operator_operates_mine:** Merendon Mining (Colorado) Inc → Bueno Mine; 2006-10-19 to 2012-02-23; source msha-controller-operator-history
- **controller_controls_mine:** Merendon Mining (Nevada) Inc → Bueno Mine; 2006-10-19 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Merendon Mining (Nevada) Inc → Merendon Mining (Colorado) Inc; 2006-10-19 to 2012-02-23; source msha-controller-operator-history
- **operator_operates_mine:** Gold Hill Minerals Inc → Bueno Mine; 2012-02-24 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** David  Badner er al → Bueno Mine; 2012-02-24 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** David  Badner er al → Gold Hill Minerals Inc; 2012-02-24 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** George  Christodoulou et al → Gold Hill Minerals Inc; 2012-02-24 to current/open; source msha-controller-operator-history