# Relationship history for MSHA mine 1002117

Current hierarchy: **Rory  Doloughan → Lost River Ready Mix → Tenth Hole**

- 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:** Lost River Ready Mix → Tenth Hole; 2007-05-22 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Rory  Doloughan → Tenth Hole; 2007-05-22 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Rory  Doloughan → Lost River Ready Mix; 2007-05-22 to current/open; source msha-controller-operator-history