# Relationship history for MSHA mine 4801657

Current hierarchy: **LeRoy  Taylor → Taylor Quarry LLC → Taylor One**

- 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:** LeRoy  Taylor → Taylor One; 2002-01-31 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Taylor Quarry LLC → Taylor One; 2004-06-23 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** LeRoy  Taylor → Taylor Quarry LLC; 2004-06-23 to current/open; source msha-controller-operator-history