# Relationship history for MSHA mine 2602409

Current hierarchy: **John Olsen  Lear → Cutthroat Mining Corp → Treasure Hawk No 4**

- 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:** Cutthroat Mining Corp → Treasure Hawk No 4; 2000-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** John Olsen  Lear → Treasure Hawk No 4; 2000-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** John Olsen  Lear → Cutthroat Mining Corp; 2000-01-01 to current/open; source msha-controller-operator-history