# Relationship history for MSHA mine 3003928

Current hierarchy: **Giles R  Legacy → Legton Inc → Legacy Pit**

- 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:** Legton Inc → Legacy Pit; 2014-08-05 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Giles R  Legacy → Legacy Pit; 2014-08-05 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Giles R  Legacy → Legton Inc; 2014-08-05 to current/open; source msha-controller-operator-history