# Relationship history for MSHA mine 0405246

Current hierarchy: **Tyler Dave → Tyler Mines → CHERRY CR. PLACER**

- 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:** Tyler Mines → CHERRY CR. PLACER; 1994-06-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Tyler Dave → CHERRY CR. PLACER; 1994-06-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Tyler Dave → Tyler Mines; 1994-06-01 to current/open; source msha-controller-operator-history