# Relationship history for MSHA mine 3606868

Current hierarchy: **J Clifford  Forrest III → Pine Run Coal Company → Pine Run Tipple**

- 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:** Pine Run Coal Company → Pine Run Tipple; 1979-08-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** J Clifford  Forrest III → Pine Run Tipple; 1979-08-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** J Clifford  Forrest III → Pine Run Coal Company; 1979-08-01 to current/open; source msha-controller-operator-history