# Relationship history for MSHA mine 0402084

Current hierarchy: **Reed Family Companies → George Reed Inc → Mokelumne Hill Pit And Mill**

- 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:** George Reed Inc → Mokelumne Hill Pit And Mill; 1950-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Reed Family Companies → Mokelumne Hill Pit And Mill; 1950-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Reed Family Companies → George Reed Inc; 1950-01-01 to current/open; source msha-controller-operator-history