# Relationship history for MSHA mine 1700732

Current hierarchy: **George  Schott → L A Quarry, LLC → L A Quarry, LLC/Auburn 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

- **controller_controls_mine:** Clay  McClafferty et al → L A Quarry, LLC/Auburn Pit; 1990-08-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** K & K Excavation Inc → L A Quarry, LLC/Auburn Pit; 2002-07-08 to 2015-12-31; source msha-controller-operator-history
- **controller_controls_operator:** Clay  McClafferty et al → K & K Excavation Inc; 2002-07-08 to 2015-12-31; source msha-controller-operator-history
- **operator_operates_mine:** L A Quarry, LLC → L A Quarry, LLC/Auburn Pit; 2016-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** George  Schott → L A Quarry, LLC/Auburn Pit; 2016-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** George  Schott → L A Quarry, LLC; 2016-01-01 to current/open; source msha-controller-operator-history