# Relationship history for MSHA mine 4607105

Current hierarchy: **Adkins Timothy C & William G → Grizzly Mining Inc → Mine No 3**

- 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

- **controller_controls_mine:** Adkins Timothy C & William G → Mine No 3; 1983-11-18 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Grizzly Mining Inc → Mine No 3; 1986-04-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Adkins Timothy C & William G → Grizzly Mining Inc; 1986-04-01 to current/open; source msha-controller-operator-history