# Relationship history for MSHA mine 2401832

Current hierarchy: **Treasure State Development Inc → Treasure State Development Inc → Black Hawk Adit**

- Valid-time bounds: inclusive, date granularity
- Null end: open-ended in the upstream history row; not independent proof of present control
- Transaction-time observation: 2026-10-17T05:35:58.500035+00:00

## Valid-time edges

- **operator_operates_mine:** Treasure State Development Inc → Black Hawk Adit; 1986-10-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Treasure State Development Inc → Black Hawk Adit; 1986-10-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Treasure State Development Inc → Treasure State Development Inc; 1986-10-01 to current/open; source msha-controller-operator-history