# Relationship history for MSHA mine 3004019

Current hierarchy: **Town of Poestenkill → TOWN OF POESTENKILL → RAWSON 3830 PORTABLE SCREEN**

- 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:** Town of Poestenkill → RAWSON 3830 PORTABLE SCREEN; 2018-06-07 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Town of Poestenkill → RAWSON 3830 PORTABLE SCREEN; 2018-06-07 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Town of Poestenkill → Town of Poestenkill; 2018-06-07 to current/open; source msha-controller-operator-history