# Relationship history for MSHA mine 3003764

Current hierarchy: **Town Of Wethersfield-NY → Town of Wethersfield → Wethersfield**

- 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

- **controller_controls_mine:** Town Of Wethersfield-NY → Wethersfield; 1980-05-01 to 1985-06-30; source msha-controller-operator-history
- **operator_operates_mine:** Town of Wethersfield → Wethersfield; 2010-06-10 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Town Of Wethersfield-NY → Town of Wethersfield; 2010-06-10 to 1985-06-30; source msha-controller-operator-history
- **controller_controls_mine:** Town Of Wethersfield-NY → Wethersfield; 2010-06-10 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Town Of Wethersfield-NY → Town of Wethersfield; 2010-06-10 to current/open; source msha-controller-operator-history