# Relationship history for MSHA mine 1001254

Current hierarchy: **Podd Ben → Treasure Valley Mining Inc → Treasure Valley 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:** D & D Mining → Treasure Valley Mine; 1950-01-01 to 1981-11-30; source msha-controller-operator-history
- **controller_controls_mine:** Donald Dearing Et Al → Treasure Valley Mine; 1950-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Donald Dearing Et Al → D & D Mining; 1950-01-01 to 1981-11-30; source msha-controller-operator-history
- **operator_operates_mine:** Treasure Valley Mining Inc → Treasure Valley Mine; 1981-12-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Podd Ben → Treasure Valley Mine; 1981-12-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Podd Ben → Treasure Valley Mining Inc; 1981-12-01 to current/open; source msha-controller-operator-history