# Relationship history for MSHA mine 4801674

Current hierarchy: **Jim  Nicholson → Nicholson Dirt Contracting → Eagle One**

- 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:** Nicholson Dirt Contracting → Eagle One; 2005-09-15 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Jim  Nicholson → Eagle One; 2005-09-15 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Jim  Nicholson → Nicholson Dirt Contracting; 2005-09-15 to current/open; source msha-controller-operator-history