# Relationship history for MSHA mine 4405211

Current hierarchy: **Rash Russell → Middle Creek Coal Corp → No 6 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: 2026-10-13T11:19:05.459773+00:00

## Valid-time edges

- **controller_controls_mine:** Van Dyke James Ray Et Al → No 6 Mine; 1950-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Rash Russell → No 6 Mine; 1977-09-28 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Bill Branch Coal Company Inc → No 6 Mine; 1979-04-01 to 1980-08-11; source msha-controller-operator-history
- **controller_controls_operator:** Van Dyke James Ray Et Al → Bill Branch Coal Company Inc; 1979-04-01 to 1980-08-11; source msha-controller-operator-history
- **operator_operates_mine:** Middle Creek Coal Corp → No 6 Mine; 1980-08-12 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Rash Russell → Middle Creek Coal Corp; 1980-08-12 to current/open; source msha-controller-operator-history