# Relationship history for MSHA mine 4001778

Current hierarchy: **Trivett Henry & Garieth → Beech Bottom Coal Company Inc → Mine #2**

- 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:** Roger E  West → Mine #2; 1974-11-25 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Lone Mountain Coal Company Inc → Mine #2; 1975-06-15 to 1982-11-14; source msha-controller-operator-history
- **controller_controls_operator:** Roger E  West → Lone Mountain Coal Company Inc; 1975-06-15 to 1982-11-14; source msha-controller-operator-history
- **controller_controls_mine:** Donald C  Seiber et al → Mine #2; 1978-08-28 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Tri-Dean Mining Inc → Mine #2; 1982-11-15 to 1984-04-09; source msha-controller-operator-history
- **controller_controls_operator:** Donald C  Seiber et al → Tri-Dean Mining Inc; 1982-11-15 to 1984-04-09; source msha-controller-operator-history
- **controller_controls_mine:** Trivett Henry & Garieth → Mine #2; 1983-12-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Little Creek Coal Inc → Mine #2; 1984-04-10 to 1985-06-09; source msha-controller-operator-history
- **controller_controls_mine:** Tucker Joseph L Et Al → Mine #2; 1984-04-10 to 1985-06-09; source msha-controller-operator-history
- **controller_controls_operator:** Tucker Joseph L Et Al → Little Creek Coal Inc; 1984-04-10 to 1985-06-09; source msha-controller-operator-history
- **operator_operates_mine:** Beech Bottom Coal Company Inc → Mine #2; 1985-06-10 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Trivett Henry & Garieth → Beech Bottom Coal Company Inc; 1985-06-10 to current/open; source msha-controller-operator-history