# Relationship history for MSHA mine 3610347

Current hierarchy: **Enrique E  Vasquez → Vasquez Stone Supply, LLC → Rossi 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

- **controller_controls_mine:** Enrique E  Vasquez → Rossi Quarry; 2014-10-08 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Vasquez Stone Supply, LLC → Rossi Quarry; 2020-09-17 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Enrique E  Vasquez → Vasquez Stone Supply, LLC; 2020-09-17 to current/open; source msha-controller-operator-history