# Relationship history for MSHA mine 0405571

Current hierarchy: **Brian  Turner; Lynne  Turner → Round Mountain Rock → Round Mountain Rock**

- 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:** RLG Round Mountain Rock → Round Mountain Rock; 2003-09-10 to 2012-08-05; source msha-controller-operator-history
- **controller_controls_mine:** Richard L  Gilliland → Round Mountain Rock; 2003-09-10 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Richard L  Gilliland → RLG Round Mountain Rock; 2003-09-10 to 2012-08-05; source msha-controller-operator-history
- **operator_operates_mine:** Round Mountain Rock → Round Mountain Rock; 2012-08-06 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Brian  Turner et al → Round Mountain Rock; 2012-08-06 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Brian  Turner et al → Round Mountain Rock; 2012-08-06 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Lynne  Turner et al → Round Mountain Rock; 2012-08-06 to current/open; source msha-controller-operator-history