# Relationship history for MSHA mine 2602087

Current hierarchy: **Amax Gold Inc → Wind Mountain Mining Inc → WIND MOUNTAIN MINE**

- 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:** Wind Mountain Mining Inc → WIND MOUNTAIN MINE; 1988-10-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Amax Gold Inc Et Al → WIND MOUNTAIN MINE; 1988-10-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Amax Gold Inc Et Al → Wind Mountain Mining Inc; 1988-10-01 to current/open; source msha-controller-operator-history