# Relationship history for MSHA mine 2401576

Current hierarchy: **Eddy Peak Mines → Eddy Peak Mines → Nugget #2**

- 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:** Eddy Peak Mines → Nugget #2; 1980-07-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Eddy Peak Mines → Nugget #2; 1980-07-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Eddy Peak Mines → Eddy Peak Mines; 1980-07-01 to current/open; source msha-controller-operator-history