# Relationship history for MSHA mine 0600241

Current hierarchy: **Dell Oro Dino → D & J Construction Company Inc → Rimmon Road 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: 2026-10-17T05:35:58.500035+00:00

## Valid-time edges

- **operator_operates_mine:** D & J Construction Company Inc → Rimmon Road Pit; 1950-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Dell Oro Dino → Rimmon Road Pit; 1950-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Dell Oro Dino → D & J Construction Company Inc; 1950-01-01 to current/open; source msha-controller-operator-history