# Relationship history for MSHA mine 4607319

Current hierarchy: **Fraley Jerry L → Raider Run Coal Company Inc → Landisburg Auger**

- 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

- **controller_controls_mine:** Fraley Jerry L → Landisburg Auger; 1985-11-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Raider Run Coal Company Inc → Landisburg Auger; 1987-06-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Fraley Jerry L → Raider Run Coal Company Inc; 1987-06-01 to current/open; source msha-controller-operator-history