# Relationship history for MSHA mine 0202950

Current hierarchy: **Fort Mc Dowell Yavapai Nation → Fort McDowell Yavapai Materials → Dean Road Property**

- 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

- **controller_controls_mine:** Fort Mc Dowell Yavapai Nation → Dean Road Property; 1984-09-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Fort McDowell Yavapai Materials → Dean Road Property; 2001-11-05 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Fort Mc Dowell Yavapai Nation → Fort McDowell Yavapai Materials; 2001-11-05 to current/open; source msha-controller-operator-history