# Relationship history for MSHA mine 3003872

Current hierarchy: **Town Of Middletown-NY → Town of Middletown → Middletown Sand & Gravel Mine**

- 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:** Town Of Middletown-NY → Middletown Sand & Gravel Mine; 1980-05-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Town of Middletown → Middletown Sand & Gravel Mine; 2013-03-29 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Town Of Middletown-NY → Town of Middletown; 2013-03-29 to current/open; source msha-controller-operator-history