# Relationship history for MSHA mine 0102288

Current hierarchy: **White W R → Cherokee Mining Company Inc → Langston Gap 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:** White W R → Langston Gap Mine; 1976-05-24 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Cherokee Mining Company Inc → Langston Gap Mine; 1981-02-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** White W R → Cherokee Mining Company Inc; 1981-02-01 to current/open; source msha-controller-operator-history