# Relationship history for MSHA mine 0901168

Current hierarchy: **Gordon County-GA → Gordon County Board of Commissioners → Gordon County Mine (Chert)**

- 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:** Gordon County Board of Commissioners → Gordon County Mine (Chert); 2006-03-20 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Gordon County-GA → Gordon County Mine (Chert); 2006-03-20 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Gordon County-GA → Gordon County Board of Commissioners; 2006-03-20 to current/open; source msha-controller-operator-history