# Relationship history for MSHA mine 1701008

Current hierarchy: **Lenny R  Meader → Meader's Construction → Smith 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: 2026-10-17T05:35:58.500035+00:00

## Valid-time edges

- **operator_operates_mine:** Meader's Construction → Smith Quarry; 2018-06-11 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Lenny R  Meader → Smith Quarry; 2018-06-11 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Lenny R  Meader → Meader's Construction; 2018-06-11 to current/open; source msha-controller-operator-history