# Relationship history for MSHA mine 4407247

Current hierarchy: **Carl  Hamilton → Mountaineer Enterprises Inc → Mountaineer No 4**

- 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:** Carl  Hamilton → Mountaineer No 4; 2004-10-14 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Mountaineer Enterprises Inc → Mountaineer No 4; 2008-12-10 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Carl  Hamilton → Mountaineer Enterprises Inc; 2008-12-10 to current/open; source msha-controller-operator-history