# Relationship history for MSHA mine 4105671

Current hierarchy: **Russell  Driver → RC Sand Denton LLC → RC Denton**

- 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:** RC Sand Denton LLC → RC Denton; 2023-02-15 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Russell  Driver → RC Denton; 2023-02-15 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Russell  Driver → RC Sand Denton LLC; 2023-02-15 to current/open; source msha-controller-operator-history