# Relationship history for MSHA mine 5001825

Current hierarchy: **Steven L  DeHart → B & R FISH BY PRODUCTS INC. → NEAR ISLAND QUARRY**

- 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:** B & R FISH BY PRODUCTS INC. → NEAR ISLAND QUARRY; 2005-07-18 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Steven L  DeHart → NEAR ISLAND QUARRY; 2005-07-18 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Steven L  DeHart → B & R FISH BY PRODUCTS INC.; 2005-07-18 to current/open; source msha-controller-operator-history