# Relationship history for MSHA mine 4500499

Current hierarchy: **Lion Mines Ltd → Lion Mines Ltd (Usa) → Western Gold New Light Project**

- 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:** Pacific Mine Contractors Inc → Western Gold New Light Project; 1950-01-01 to 1981-07-28; source msha-controller-operator-history
- **controller_controls_mine:** Fry R F & Assoc Pacific Ltd → Western Gold New Light Project; 1950-01-01 to 1981-07-28; source msha-controller-operator-history
- **controller_controls_operator:** Fry R F & Assoc Pacific Ltd → Pacific Mine Contractors Inc; 1950-01-01 to 1981-07-28; source msha-controller-operator-history
- **controller_controls_mine:** Lion Mines Ltd → Western Gold New Light Project; 1981-01-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Lion Mines Ltd (Usa) → Western Gold New Light Project; 1981-07-29 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Lion Mines Ltd → Lion Mines Ltd (Usa); 1981-07-29 to current/open; source msha-controller-operator-history