# Relationship history for MSHA mine 4105419

Current hierarchy: **Kendy  Valle → Valle Stone, LLC → Valle 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:** Valle Stone, LLC → Valle Quarry; 2019-03-28 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Kendy  Valle → Valle Quarry; 2019-03-28 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Kendy  Valle → Valle Stone, LLC; 2019-03-28 to current/open; source msha-controller-operator-history