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1. Basins: Allegheny County, Pennsylvania

2002. Allegheny County Division of Computer Services Geographic Information Systems Group. 3 Rivers Wet Weather Demonstration Program Outreach Planning Basins.

2. Blocks: Allegheny County, Pennsylvania

2002. Allegheny County Division of Computer Services Geographic Information Systems Group. Derived from original MAPINDX: Map Index Sheets from Block and Lot Grid of Property Assessment and based on aerial photography, showing 1983 datum ...

3. Building Footprints: Allegheny County, Pennsylvania

2018. Allegheny County Division of Computer Services Geographic Information Systems Group. Footprints for all buildings and out buildings in Allegheny County. Buildings are captured by following the edge of the roof line. All near orthogo...

4. Cemeteries: Allegheny County, Pennsylvania

2002. Allegheny County Division of Computer Services Geographic Information Systems Group. Outlines of public and private cemeteries greater than one acre in size. Areas were delineated following a generalized line along the outside edge ...

5. Contours: Allegheny County, Pennsylvania

2006. Allegheny County Division of Computer Services Geographic Information Systems Group. Contour data was created as a result of a county flyover in the spring of 2004. Contours were created from a DTM Feature Dataset, upgraded by Baker...

6. Councils of Government: Allegheny County, Pennsylvania

2008. Allegheny County Division of Computer Services Geographic Information Systems Group. Data was created to portray the boundaries of the Councils of Government (COG's) in Allegheny County.

7. County Council Districts: Allegheny County, Pennsylvania

2012. Allegheny County Division of Computer Services Geographic Information Systems Group. Data was created to portray the boundaries of the County Council Districts in Allegheny County.

8. Floodplain: Allegheny County, Pennsylvania

2000. Allegheny County Division of Computer Services Geographic Information Systems Group. In an effort to expedite the permit review process for Water Obstruction and Encroachment Applications, the Pennsylvania Department of Environmenta...

9. Hydrology Areas: Allegheny County, Pennsylvania

2016. Allegheny County Division of Computer Services Geographic Information Systems Group. Rivers, Lakes, Ponds, Reservoirs, Hidden Lakes, Reservoirs or Ponds: If greater than 25 feet and less than 30 feet wide, is captured as a double li...

10. Hydrology Lines: Allegheny County, Pennsylvania

2016. Allegheny County Division of Computer Services Geographic Information Systems Group. Rivers, Lakes, Ponds, Reservoirs, Hidden Lakes, Reservoirs or Ponds: If greater than 25 feet and less than 30 feet wide, is captured as a double li...