# Relationship history for MSHA mine 4105103

Current hierarchy: **Luz Miguel  Gomez → Gomez Backhoe Services → Gravel N More**

- 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:** Gomez Backhoe Services → Gravel N More; 2014-12-18 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Luz Miguel  Gomez → Gravel N More; 2014-12-18 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Luz Miguel  Gomez → Gomez Backhoe Services; 2014-12-18 to current/open; source msha-controller-operator-history