# Relationship history for MSHA mine 3002428

Current hierarchy: **Towns Of Milton-Galway & Providence-Ny → Towns Of Providence, Galway , Milton → Tri Town Gravel Facility**

- 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:** Towns Of Providence, Galway , Milton → Tri Town Gravel Facility; 1979-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Towns Of Milton-Galway & Providence-Ny → Tri Town Gravel Facility; 1979-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Towns Of Milton-Galway & Providence-Ny → Towns Of Providence, Galway , Milton; 1979-01-01 to current/open; source msha-controller-operator-history