# Relationship history for MSHA mine 5001431

Current hierarchy: **Mc Clain John E → Mining Company → Mining Company Placer**

- 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:** Mining Company → Mining Company Placer; 1982-07-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Mc Clain John E → Mining Company Placer; 1982-07-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Mc Clain John E → Mining Company; 1982-07-01 to current/open; source msha-controller-operator-history