# Relationship history for MSHA mine 2601932

Current hierarchy: **Amax Gold Inc → Nevada Gold Mining Inc → SLEEPER 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: 2026-10-17T05:35:58.500035+00:00

## Valid-time edges

- **operator_operates_mine:** Nevada Gold Mining Inc → SLEEPER MINE; 1985-08-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Amax Gold Inc Et Al → SLEEPER MINE; 1985-08-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Amax Gold Inc Et Al → Nevada Gold Mining Inc; 1985-08-01 to current/open; source msha-controller-operator-history