# Relationship history for MSHA mine 3200885

Current hierarchy: **James Gordon  McFadgen → Gravel Ranch → Gravel Ranch**

- 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:** Gravel Ranch → Gravel Ranch; 2011-07-25 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** James Gordon  McFadgen → Gravel Ranch; 2011-07-25 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** James Gordon  McFadgen → Gravel Ranch; 2011-07-25 to current/open; source msha-controller-operator-history