# Relationship history for MSHA mine 2002574

Current hierarchy: **Snead Charles D Jr → Callahan Mining Corp → Ropes Gold 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

- **controller_controls_mine:** Snead Charles D Jr → Ropes Gold Mine; 1950-01-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Resource Exploration Inc → Ropes Gold Mine; 1980-10-01 to 1983-07-25; source msha-controller-operator-history
- **controller_controls_mine:** Bodwell Willard → Ropes Gold Mine; 1980-10-01 to 1983-07-25; source msha-controller-operator-history
- **controller_controls_operator:** Bodwell Willard → Resource Exploration Inc; 1980-10-01 to 1983-07-25; source msha-controller-operator-history
- **operator_operates_mine:** Fausett Mine Services → Ropes Gold Mine; 1983-07-26 to 1985-12-31; source msha-controller-operator-history
- **controller_controls_mine:** Fausett Lovon → Ropes Gold Mine; 1983-07-26 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Fausett Lovon → Fausett Mine Services; 1983-07-26 to 1985-12-31; source msha-controller-operator-history
- **operator_operates_mine:** Callahan Mining Corp → Ropes Gold Mine; 1986-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Snead Charles D Jr → Callahan Mining Corp; 1986-01-01 to current/open; source msha-controller-operator-history