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County
Allegheny County Hydrology Lines
Allegheny County / City of Pittsburgh / Western PA Regional Data Center —
The Hydrology Feature Dataset contains photogrammetrically compiled water drainage features and structures including rivers, streams, drainage canals, locks, dams,... -
County
Allegheny County Beltway System Street Centerlines
Allegheny County / City of Pittsburgh / Western PA Regional Data Center —
Authoritative dataset of the beltway system in Allegheny County. The system was developed to help motorists navigate through Allegheny County on low-traffic roads....