Big Ten Academic Alliance Geospatial Discovery Portal

Big Ten Academic Alliance Geoportal

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Data for Greene County, Ohio

2019. County website with downloadable shapefiles for addresses, boundaries, transportation, features, hydrology, parcels, parks, districts, soils, and m...

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Enterprise GIS Data Download Page for Morrow County, Ohio

2019. Morrow County Enterprise GIS. Website containing downloadable shapefiles for parcels, addresses, transportation, boundaries, hydrology, geology, and more. LBRS named datasets - ...

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Aerial Photo Centers, Maryland Imagery Acquisition Flight Information: Maryland

2018. ArcGIS Online for Maryland. This is a MD iMAP hosted service. Find more information on http://imap.maryland.gov.This service contains photo centers for the 2016 2017 high-reso...

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Base Map: Pennsylvania

2018. Pennsylvania Base Map.

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Basemap Of Washington, D.C.

City of Washington, DC. The DC Basemap web service provides a reference map for the District of Columbia projected in Web Mercator. Access the ArcGIS Rest endpoint or view...

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Basemap Of Washington, D.C. In Dark Gray

City of Washington, DC. The Dark Gray DC Basemap web service provides a reference map for the District of Columbia projected in Web Mercator. Access the ArcGIS Rest endpoi...

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Basemap Of Washington, D.C. In Light Gray

City of Washington, DC. The Light Gray DC Basemap web service provides a reference map for the District of Columbia projected in Web Mercator. Access the ArcGIS Rest endpo...

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Boundaries of Planning Projects & Scanned Drawings: Howard County, Maryland

Boundaries of Planning Projects & Scanned Drawings: Howard County, Maryland

The polygon boundaries of scanned plan drawings. Each boundary is hyper-linked to a unique drawing in .PDF format. The .PDF may be downloaded usi...

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County-wide Mosaics of 7.5 Minute USGS Topographic Maps: Iowa

County-wide Mosaics of 7.5 Minute USGS Topographic Maps: Iowa

2018. Iowa Department of Natural Resources. Topographic Maps Each zip file contains a MrSid compressed image of the topographic quads of a certain Iowa county.

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Historical Aerials: Center County, Pennsylvania, 1938

2018. Centre County Aerials 1938 from the Penn Pilot Program.

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Historical Aerials: Center County, Pennsylvania, 1957

2018. Centre County Aerials 1957 from the Penn Pilot Program.

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Historical Aerials: Center County, Pennsylvania, 1971

2018. Centre County Aerials 1971 from the Penn Pilot Program.

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Land Cover by HUC 10: Pennsylvania

2018. Pennsylvania Land Cover by Hydrologic Unit Code (HUC) 10, Based on NLCD 2011.

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Land Cover by HUC 12: Pennsylvania

2018. Pennsylvania Land Cover by Hydrologic Unit Code (HUC) 12, Based on NLCD 2011.

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Land Cover Change by HUC 8: Pennsylvania

2018. Pennsylvania Land Cover by Hydrologic Unit Code (HUC) 12, Based on NLCD 2011.

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Land Cover Change by Pennsylvania County 1992 - 2011

2018. Land Cover Change by Pennsylvania County, Includes change from 1992 - 2011, 2001 - 2011, 2005 - 2011.

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Land Cover Change by Pennsylvania Major River Basin 1992 - 2011

2018. Land Cover Change by Pennsylvania Major River Basin change includes 1992 - 2011, 2001 - 2011, 2005 - 2011, Change is focused on Percent Forest, Per...

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Land Cover Change by Pennsylvania Physiographic Provinces change includes 1992 - 2011

2018. Land Cover Change by Pennsylvania Physiographic Provinces change includes 1992 - 2011, 2001 - 2011, 2005 - 2011, Change is focused on Percent Fores...

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Land Cover Change by Pennsylvania Physiographic Sections change includes 1992 - 2011

2018. Land Cover Change by Pennsylvania Physiographic Sections change includes 1992 - 2011.

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Landcover Designations: Harford County, Maryland

Harford County Government. Harford County Maryland landcover designations.