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1271. Zebra Mussel Distribution: United States
2008. U.S. Geological Survey. The concern caused by the explosive spread of the zebra mussel, (Dreissena polymorpha), within the United States resulted in passage of the Nonindi...
1272. Zip Codes: Allegheny County, Pennsylvania
2016. This dataset demarcates the zip code boundaries that lie within Allegheny County. These are not clipped to the Allgeheny County boundary.
1273. Zoning Districts: Murrysville, Pennsylvania
1999. The Zoning coverage is a polygon layer reflecting Murrysvilles zoning districts and their boundaries. The coverage is designed to overlay the parc...
1274. Zoning Registered Community Organizations: Philadephia, Pennsylvania
2016. Philadelphia City Planning Commission. Polygon boundaries of Registered Community Organizations (RCO) as established under Section 14-303 (12) of the City of Philadelphia Zoning Code ena...