# Relationship history for MSHA mine 2003385

Current hierarchy: **Mackinac County-MI → Mackinac County Road Commission → Mackinac County Road Comm-East District**

- 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:** Mackinac County Road Commission → Mackinac County Road Comm-East District; 2007-04-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Mackinac County-MI → Mackinac County Road Comm-East District; 2007-04-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Mackinac County-MI → Mackinac County Road Commission; 2007-04-01 to current/open; source msha-controller-operator-history