# Relationship history for MSHA mine 4105803

Current hierarchy: **Shaye  Johnson → Brett Construction Company → Elkins 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:** Brett Construction Company → Elkins Pit; 2025-06-10 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Shaye  Johnson → Elkins Pit; 2025-06-10 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Shaye  Johnson → Brett Construction Company; 2025-06-10 to current/open; source msha-controller-operator-history