# Relationship history for MSHA mine 0600739

Current hierarchy: **Jacob A Getty → Liberty Hill Quarry, LLC → Liberty Hill Quarry**

- 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:** G's Ruffstuff → Liberty Hill Quarry; 2007-01-25 to 2022-06-01; source msha-controller-operator-history
- **controller_controls_mine:** Gary A  Getty → Liberty Hill Quarry; 2007-01-25 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Gary A  Getty → G's Ruffstuff; 2007-01-25 to 2022-06-01; source msha-controller-operator-history
- **operator_operates_mine:** Liberty Hill Quarry, LLC → Liberty Hill Quarry; 2022-06-02 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Jacob A Getty → Liberty Hill Quarry; 2022-06-02 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Jacob A Getty → Liberty Hill Quarry, LLC; 2022-06-02 to current/open; source msha-controller-operator-history