# Relationship history for MSHA mine 4405079

Current hierarchy: **Bailey Arnold → Little Auger Coal & Land Company Inc → No 1 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

- **operator_operates_mine:** Little Auger Coal & Land Company Inc → No 1 Mine; 1978-08-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Bailey Arnold → No 1 Mine; 1978-08-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Bailey Arnold → Little Auger Coal & Land Company Inc; 1978-08-01 to current/open; source msha-controller-operator-history