# Relationship history for MSHA mine 3002448

Current hierarchy: **Mc Laughlin Scott → Scott Mc Laughlin Contractors Inc → Mc Laughlin Pit No 2**

- 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:** Scott Mc Laughlin Contractors Inc → Mc Laughlin Pit No 2; 1980-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Mc Laughlin Scott → Mc Laughlin Pit No 2; 1980-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Mc Laughlin Scott → Scott Mc Laughlin Contractors Inc; 1980-01-01 to current/open; source msha-controller-operator-history