# Relationship history for MSHA mine 2400512

Current hierarchy: **Bauer Charles W → Chelsea Resources (Us) Inc → Spotted Horse 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:** Spotted Horse Mine Inc → Spotted Horse Mine; 1950-01-01 to 1984-04-11; source msha-controller-operator-history
- **controller_controls_mine:** Einarsen Charles A → Spotted Horse Mine; 1950-01-01 to 1984-04-11; source msha-controller-operator-history
- **controller_controls_operator:** Einarsen Charles A → Spotted Horse Mine Inc; 1950-01-01 to 1984-04-11; source msha-controller-operator-history
- **operator_operates_mine:** Colorado Minerals Inc → Spotted Horse Mine; 1984-04-12 to 1986-09-14; source msha-controller-operator-history
- **controller_controls_mine:** Thomas R  Young → Spotted Horse Mine; 1984-04-12 to 1986-09-14; source msha-controller-operator-history
- **controller_controls_operator:** Thomas R  Young → Colorado Minerals Inc; 1984-04-12 to 1986-09-14; source msha-controller-operator-history
- **operator_operates_mine:** Appaloosa Joint Venture-Cimarron Exploration Inc → Spotted Horse Mine; 1986-09-15 to 1988-03-31; source msha-controller-operator-history
- **controller_controls_mine:** Giles David L → Spotted Horse Mine; 1986-09-15 to 1990-07-22; source msha-controller-operator-history
- **controller_controls_operator:** Giles David L → Appaloosa Joint Venture-Cimarron Exploration Inc; 1986-09-15 to 1988-03-31; source msha-controller-operator-history
- **operator_operates_mine:** Chelsea Resources (Us) Inc → Spotted Horse Mine; 1988-04-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Bauer Charles W → Spotted Horse Mine; 1988-04-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Bauer Charles W → Chelsea Resources (Us) Inc; 1988-04-01 to current/open; source msha-controller-operator-history