# Relationship history for MSHA mine 3610335

Current hierarchy: **Timothy Bryan  Girts → Girts Sand and Gravel LLC → J-1160C65323**

- 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:** Girts Sand and Gravel LLC → J-1160C65323; 2020-06-18 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Timothy Bryan  Girts → J-1160C65323; 2020-06-18 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Timothy Bryan  Girts → Girts Sand and Gravel LLC; 2020-06-18 to current/open; source msha-controller-operator-history