# Relationship history for MSHA mine 0801272

Current hierarchy: **Tim C  Miner → Miner & Sons → Sunny Hill 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

- **controller_controls_mine:** Tim C  Miner → Sunny Hill Mine; 1994-11-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Miner & Sons → Sunny Hill Mine; 1999-03-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Tim C  Miner → Miner & Sons; 1999-03-01 to current/open; source msha-controller-operator-history