# Relationship history for MSHA mine 4603232

Current hierarchy: **Harrold Don → Pitcarin Properties Inc → Red Rock Mine Job**

- 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:** Lafayette Corp → Red Rock Mine Job; 1950-01-01 to 1975-08-01; source msha-controller-operator-history
- **controller_controls_mine:** Harrold Don → Red Rock Mine Job; 1950-01-01 to 1975-08-01; source msha-controller-operator-history
- **controller_controls_operator:** Harrold Don → Lafayette Corp; 1950-01-01 to 1975-08-01; source msha-controller-operator-history
- **controller_controls_mine:** Harrold Don → Red Rock Mine Job; 1974-10-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** G H B Coals Inc → Red Rock Mine Job; 1975-08-02 to 1980-02-27; source msha-controller-operator-history
- **controller_controls_mine:** Hooper William R → Red Rock Mine Job; 1975-08-02 to 1980-02-27; source msha-controller-operator-history
- **controller_controls_operator:** Hooper William R → G H B Coals Inc; 1975-08-02 to 1980-02-27; source msha-controller-operator-history
- **operator_operates_mine:** Pitcarin Properties Inc → Red Rock Mine Job; 1980-02-28 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Harrold Don → Pitcarin Properties Inc; 1980-02-28 to current/open; source msha-controller-operator-history