# Relationship history for MSHA mine 3501285

Current hierarchy: **Curl James M → Bend Aggregate & Paving Company → LONE PINE 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: 2026-10-13T11:19:05.459773+00:00

## Valid-time edges

- **controller_controls_mine:** Curl James M → LONE PINE QUARRY; 1950-01-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Central Oregon Pavers Inc → LONE PINE QUARRY; 1950-01-01 to 1991-07-08; source msha-controller-operator-history
- **controller_controls_mine:** Dean Pat → LONE PINE QUARRY; 1950-01-01 to 1991-07-08; source msha-controller-operator-history
- **controller_controls_operator:** Dean Pat → Central Oregon Pavers Inc; 1950-01-01 to 1991-07-08; source msha-controller-operator-history
- **operator_operates_mine:** Bend Aggregate & Paving Company → LONE PINE QUARRY; 1991-07-09 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Curl James M → Bend Aggregate & Paving Company; 1991-07-09 to current/open; source msha-controller-operator-history