# Relationship history for MSHA mine 3003862

Current hierarchy: **Macy  Collins → Collins Sand & Gravel → Route 30 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: 2026-10-13T11:19:05.459773+00:00

## Valid-time edges

- **controller_controls_mine:** Colas S A → Route 30 Pit; 1979-12-14 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Barrett Paving Materials Inc → Route 30 Pit; 2012-10-04 to 2026-06-03; source msha-controller-operator-history
- **controller_controls_operator:** Colas S A → Barrett Paving Materials Inc; 2012-10-04 to 2026-06-03; source msha-controller-operator-history
- **operator_operates_mine:** Collins Sand & Gravel → Route 30 Pit; 2026-06-04 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Macy  Collins → Route 30 Pit; 2026-06-04 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Macy  Collins → Collins Sand & Gravel; 2026-06-04 to current/open; source msha-controller-operator-history