# Relationship history for MSHA mine 4003265

Current hierarchy: **Lee  Baston → Lee's Construction Co Inc → Ashland City 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

- **operator_operates_mine:** Lee's Construction Co Inc → Ashland City Mine; 2005-08-25 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Lee  Baston → Ashland City Mine; 2005-08-25 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Lee  Baston → Lee's Construction Co Inc; 2005-08-25 to current/open; source msha-controller-operator-history