# Relationship history for MSHA mine 4105684

Current hierarchy: **Marco  Zaragoza → Southwest Windstar LLC → Southwest Windstar LLC**

- 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:** Southwest Windstar LLC → Southwest Windstar LLC; 2023-04-18 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Marco  Zaragoza → Southwest Windstar LLC; 2023-04-18 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Marco  Zaragoza → Southwest Windstar LLC; 2023-04-18 to current/open; source msha-controller-operator-history