# Relationship history for MSHA mine 1901329

Current hierarchy: **Steve Vincent  Phaneuf → AAP Ashby LLC → Mountain Laurel Ashby Gravel 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: 2026-10-17T05:35:58.500035+00:00

## Valid-time edges

- **operator_operates_mine:** AAP Ashby LLC → Mountain Laurel Ashby Gravel Pit; 2025-11-17 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Steve Vincent  Phaneuf → Mountain Laurel Ashby Gravel Pit; 2025-11-17 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Steve Vincent  Phaneuf → AAP Ashby LLC; 2025-11-17 to current/open; source msha-controller-operator-history