# Relationship history for MSHA mine 3401944

Current hierarchy: **Clifford G  Treadway → Clifford Treadway → Treadway Ranch**

- 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:** Clifford Treadway → Treadway Ranch; 2004-08-15 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Clifford G  Treadway → Treadway Ranch; 2004-08-15 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Clifford G  Treadway → Clifford Treadway; 2004-08-15 to current/open; source msha-controller-operator-history