# Relationship history for MSHA mine 1514813

Current hierarchy: **Freeman Bruce → Cumberland Elkhorn Inc → No 3 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:** Freeman Bruce Et Al → No 3 Mine; 1981-06-16 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Cumberland Elkhorn Inc → No 3 Mine; 1984-08-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Freeman Bruce Et Al → Cumberland Elkhorn Inc; 1984-08-01 to current/open; source msha-controller-operator-history