# Relationship history for MSHA mine 4605294

Current hierarchy: **Maynard Raymond L → Blue Knob Mining Inc → Surface 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

- **controller_controls_mine:** Rayburn Paul J → Surface No 1; 1975-01-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Cherokee Mining Company Inc → Surface No 1; 1976-09-01 to 1977-06-09; source msha-controller-operator-history
- **controller_controls_operator:** Rayburn Paul J → Cherokee Mining Company Inc; 1976-09-01 to 1977-06-09; source msha-controller-operator-history
- **operator_operates_mine:** Apache Mining Company Inc → Surface No 1; 1977-06-10 to 1980-05-26; source msha-controller-operator-history
- **controller_controls_mine:** Kelly John A → Surface No 1; 1977-06-10 to 1980-05-26; source msha-controller-operator-history
- **controller_controls_operator:** Kelly John A → Apache Mining Company Inc; 1977-06-10 to 1980-05-26; source msha-controller-operator-history
- **operator_operates_mine:** Clean Minerals Inc → Surface No 1; 1980-05-27 to 1985-07-19; source msha-controller-operator-history
- **controller_controls_mine:** Cecil David E → Surface No 1; 1980-05-27 to 1985-07-19; source msha-controller-operator-history
- **controller_controls_operator:** Cecil David E → Clean Minerals Inc; 1980-05-27 to 1985-07-19; source msha-controller-operator-history
- **operator_operates_mine:** Blue Knob Mining Inc → Surface No 1; 1985-07-20 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Maynard Raymond L → Surface No 1; 1985-07-20 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Maynard Raymond L → Blue Knob Mining Inc; 1985-07-20 to current/open; source msha-controller-operator-history