# Relationship history for MSHA mine 3003790

Current hierarchy: **Cattaraugus County-NY → Cattaraugus County Dept of Public Works → Machias Pines Pit**

- 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:** Cattaraugus County Dept of Public Works → Machias Pines Pit; 2011-04-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Cattaraugus County-NY → Machias Pines Pit; 2011-04-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Cattaraugus County-NY → Cattaraugus County Dept of Public Works; 2011-04-01 to current/open; source msha-controller-operator-history