# Relationship history for MSHA mine 4105051

Current hierarchy: **Micah  Flippen → Cooper Stone → Cooper Quarry-East**

- 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:** A-A-A Natural Stone → Cooper Quarry-East; 2014-01-01 to 2020-06-08; source msha-controller-operator-history
- **controller_controls_mine:** Tomas  Louda → Cooper Quarry-East; 2014-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Tomas  Louda → A-A-A Natural Stone; 2014-01-01 to 2020-06-08; source msha-controller-operator-history
- **controller_controls_mine:** Micah  Flippen → Cooper Quarry-East; 2017-05-05 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Cooper Stone → Cooper Quarry-East; 2020-06-09 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Micah  Flippen → Cooper Stone; 2020-06-09 to current/open; source msha-controller-operator-history