# Relationship history for MSHA mine 0505102

Current hierarchy: **Jay A Baker → Mule Creek Gravel, LLC → Mule Creek Gravel 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: 2026-10-18T09:31:49.615908+00:00

## Valid-time edges

- **operator_operates_mine:** Mule Creek Gravel, LLC → Mule Creek Gravel Pit; 2019-02-04 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Jay A Baker → Mule Creek Gravel Pit; 2019-02-04 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Jay A Baker → Mule Creek Gravel, LLC; 2019-02-04 to current/open; source msha-controller-operator-history