# Relationship history for MSHA mine 1001107

Current hierarchy: **United States Government → U S Department Of The Interior-Bureau Of Labor → Williams Creek Community 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: 2026-10-17T05:35:58.500035+00:00

## Valid-time edges

- **operator_operates_mine:** U S Department Of The Interior-Bureau Of Labor → Williams Creek Community Pit; 1950-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** United States Government → Williams Creek Community Pit; 1950-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** United States Government → U S Department Of The Interior-Bureau Of Labor; 1950-01-01 to current/open; source msha-controller-operator-history