# Relationship history for MSHA mine 4003529

Current hierarchy: **John Mitch Potter → Cherokee Rock, LLC → Cherokee Rock 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:** Hawkeye Contracting Company LLC → Cherokee Rock Quarry; 2019-12-06 to 2022-03-31; source msha-controller-operator-history
- **controller_controls_mine:** John Mitch Potter → Cherokee Rock Quarry; 2019-12-06 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** John Mitch Potter → Hawkeye Contracting Company LLC; 2019-12-06 to 2022-03-31; source msha-controller-operator-history
- **operator_operates_mine:** Cherokee Rock, LLC → Cherokee Rock Quarry; 2022-04-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** John Mitch Potter → Cherokee Rock Quarry; 2022-04-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** John Mitch Potter → Cherokee Rock, LLC; 2022-04-01 to current/open; source msha-controller-operator-history