# Relationship history for MSHA mine 2501248

Current hierarchy: **Garden County-NE → Garden County → Kontny**

- 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:** Garden County → Kontny; 2008-07-02 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Garden County-NE → Kontny; 2008-07-02 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Garden County-NE → Garden County; 2008-07-02 to current/open; source msha-controller-operator-history