# Relationship history for MSHA mine 4104056

Current hierarchy: **Mayfield  Mc Craw → Mc Craw Materials → MCCRAW 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

- **operator_operates_mine:** Mc Craw Materials, LLC → MCCRAW PIT; 1999-02-01 to 2011-01-10; source msha-controller-operator-history
- **controller_controls_mine:** Mayfield  Mc Craw → MCCRAW PIT; 1999-02-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Mayfield  Mc Craw → Mc Craw Materials, LLC; 1999-02-01 to 2011-01-10; source msha-controller-operator-history
- **operator_operates_mine:** Mc Craw Materials → MCCRAW PIT; 2011-01-11 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Mayfield  Mc Craw → MCCRAW PIT; 2011-01-11 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Mayfield  Mc Craw → Mc Craw Materials; 2011-01-11 to current/open; source msha-controller-operator-history