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104 State Water Plan Watersheds: Pennsylvania

1998. Environmental Resources Research Institute. Digitized boundaries of 104 major watersheds defined in the Pennsylvania state water plan. The State Water Plan, originally developed in the 1970s,...

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3.75-Minute Quarter Quadrangle Boundary: Pennsylvania

2003. Pennsylvania Spatial Data Access. Index of USGS quarter-quadrangles (3.75 minute) covering Pennsylvania. The polygons are attributed with information pertaining to the USGS/PaGS Dig...

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Active Underground Permit Boundaries: Pennsylvania

2018. Pennsylvania Department of Environmental Protection. Pennsylvania state law requires those who wish to conduct mining activities within the Commonwealth submit and get approval by the Pennsylvania Dep...

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Adams County, Illinois GIS

1872-2019. Adams County GIS. Geospatial datasets are publicly available via a FTP site access link, which is found on the Adams County, IL website GIS Department page linked he...

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Adjusted Census Urban Boundaries: Michigan

2015. State of Michigan. The Adjusted Census Urban Boundary (ACUB) Layer is a single polygon representing the boundary of an individual ACUB. The Adjusted Census Urban Boun...

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Adjusted Census Urban Boundary: Michigan, 2010

Southeast Michigan Council of Governments. 2010 Adjusted Census Urban Area/Boundary (ACUA/ACUB): 2010 Adjusted Census Urban Area polygons extracted from version 17 of the Michigan Geographic...

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Airport Authority District: Peoria County, Illinois

2017. Peoria County GIS. This polygon feature class represents the Airport Authority tax district boundary in Peoria County, Illinois. This boundary reflects the 2017 tax y...

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Allegan County GIS Data Library

1999-2019. Allegan County Land Information Services. The GIS Data Library page on the Allegan County, Michigan website provides links for zipped shapefile downloads. Common resource topics are covered...