# Relationship history for MSHA mine 4609444

Current hierarchy: **Roger L  Collins Jr → BRAXTON MATERIALS LLC → COLLINS ROCK 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

- **operator_operates_mine:** Collins Building and Contracting Inc. → COLLINS ROCK QUARRY; 2012-07-10 to 2024-09-29; source msha-controller-operator-history
- **controller_controls_mine:** Roger L  Collins Jr → COLLINS ROCK QUARRY; 2012-07-10 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Roger L  Collins Jr → Collins Building and Contracting Inc.; 2012-07-10 to 2024-09-29; source msha-controller-operator-history
- **operator_operates_mine:** Braxton Materials LLC → COLLINS ROCK QUARRY; 2024-09-30 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Roger L  Collins Jr → COLLINS ROCK QUARRY; 2024-09-30 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Roger L  Collins Jr → Braxton Materials LLC; 2024-09-30 to current/open; source msha-controller-operator-history