# Relationship history for MSHA mine 1000174

Current hierarchy: **Peter  Major → Canyon Silver Mining Inc → Canyon Silver 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:** Gold Leaf Mining Corp → Canyon Silver Mine; 1950-01-01 to 1983-01-17; source msha-controller-operator-history
- **controller_controls_mine:** Gold Leaf Mining Corp → Canyon Silver Mine; 1950-01-01 to 1983-01-17; source msha-controller-operator-history
- **controller_controls_operator:** Gold Leaf Mining Corp → Gold Leaf Mining Corp; 1950-01-01 to 1983-01-17; source msha-controller-operator-history
- **operator_operates_mine:** Canyon Silver Lease → Canyon Silver Mine; 1983-01-18 to 2024-05-07; source msha-controller-operator-history
- **controller_controls_mine:** Morrow Steve-Ben Walters Et Al → Canyon Silver Mine; 1983-01-18 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Morrow Steve-Ben Walters Et Al → Canyon Silver Lease; 1983-01-18 to 2024-05-07; source msha-controller-operator-history
- **operator_operates_mine:** Canyon Silver Mining Inc → Canyon Silver Mine; 2024-05-08 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Peter  Major → Canyon Silver Mine; 2024-05-08 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Peter  Major → Canyon Silver Mining Inc; 2024-05-08 to current/open; source msha-controller-operator-history