# Relationship history for MSHA mine 4405132

Current hierarchy: **Cattrell Darrell → D & C Coal Company Inc → No 1**

- Valid-time bounds: inclusive, date granularity
- Null end: open-ended in the upstream history row; not independent proof of present control
- Transaction-time observation: 2026-10-13T11:19:05.459773+00:00

## Valid-time edges

- **operator_operates_mine:** Timberline Mining Corp → No 1; 1978-11-01 to 1979-01-15; source msha-controller-operator-history
- **controller_controls_mine:** Timberline Mining Corp → No 1; 1978-11-01 to 1979-01-15; source msha-controller-operator-history
- **controller_controls_operator:** Timberline Mining Corp → Timberline Mining Corp; 1978-11-01 to 1979-01-15; source msha-controller-operator-history
- **operator_operates_mine:** Yale Mining Corp → No 1; 1979-01-16 to 1982-09-13; source msha-controller-operator-history
- **controller_controls_mine:** Cumberland Resources Corporation → No 1; 1979-01-16 to 1982-09-13; source msha-controller-operator-history
- **controller_controls_operator:** Cumberland Resources Corporation → Yale Mining Corp; 1979-01-16 to 1982-09-13; source msha-controller-operator-history
- **operator_operates_mine:** Yale Mining Corp → No 1; 1982-09-14 to 1982-12-09; source msha-controller-operator-history
- **controller_controls_mine:** Americoal Corp & Associates Of Va Ltd → No 1; 1982-09-14 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Americoal Corp & Associates Of Va Ltd → Yale Mining Corp; 1982-09-14 to 1982-12-09; source msha-controller-operator-history
- **operator_operates_mine:** D & C Coal Company Inc → No 1; 1982-12-10 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Cattrell Darrell → No 1; 1982-12-10 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Cattrell Darrell → D & C Coal Company Inc; 1982-12-10 to current/open; source msha-controller-operator-history