# Relationship history for MSHA mine 1302285

Current hierarchy: **Jay A  Jeppesen → Jeppesen Gravel → Jeppesen Pits**

- 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:** Jeppesen Gravel → Jeppesen Pits; 2004-05-19 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Jay A  Jeppesen → Jeppesen Pits; 2004-05-19 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Jay A  Jeppesen → Jeppesen Gravel; 2004-05-19 to current/open; source msha-controller-operator-history