# Relationship history for MSHA mine 3003398

Current hierarchy: **Allegany County-Ny → ALLEGANY COUNTY DEPT. OF PUBLIC WORKS → AUSTIN-WESTERN #K3554**

- 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:** ALLEGANY COUNTY DEPT. OF PUBLIC WORKS → AUSTIN-WESTERN #K3554; 2002-05-08 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Allegany County-Ny → AUSTIN-WESTERN #K3554; 2002-05-08 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Allegany County-Ny → ALLEGANY COUNTY DEPT. OF PUBLIC WORKS; 2002-05-08 to current/open; source msha-controller-operator-history