Big Ten Academic Alliance Geospatial Discovery Portal

Big Ten Academic Alliance Geoportal

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Brown Flood Zones: Ohio, United States

Ohio Geographically Referenced Information Program.

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Butler Flood Zones: Ohio, United States

Ohio Geographically Referenced Information Program.

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Carroll Flood Zones: Ohio, United States

Ohio Geographically Referenced Information Program.

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Cataloging Units, 8-digit,Hydrologic Units: Indiana

Cataloging Units, 8-digit,Hydrologic Units: Indiana

2002. United States Geological Survey. WATERSHEDS_HUC08_CATALOG_UNITS_USGS_IN is a polygon shapefile showing the boundaries of cataloging units in Indiana. Cataloging units are noted by ...

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Census Block Groups: Philadephia, Pennsylvania

2010. U.S. Department of Commerce, U.S. Census Bureau, Geography Division. The TIGER/Line Files are shapefiles and related database files (.dbf) that are an extract of selected geographic and cartographic information from ...

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Champaign Flood Zones: Ohio, United States

Ohio Geographically Referenced Information Program.

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Chemung Subbasin

2006. Polygon shapefile of the Chemung Subbasin. This file was created from the 2006 subbasin.shp SRBC dataset.

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Chesapeake Bay basin major watersheds

1996. Penn State ORSER/ERRI. Major watershed boundaries for the Chesapeake Bay basin.

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Chesapeake Bay region state boundaries

1996. Penn State ORSER/ERRI. Boundaries for the states in the Chesapeake Bay region.

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Chesapeake Bay Watershed land use/land cover v105

2000. University of Maryland Regional Earth Science Applications Center (RESAC). A land cover map of the Chesapeake Bay Watershed plus the non-watershed components of counties that intersect the Watershed. The map has 17 cover c...

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Choptank River Heritage Access

2011. Choptank River Heritage Center (CRHC). Public landings and other river access points to the Choptank River and its tributaries, on Maryland's Eastern Shore.

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Choptank River Heritage NRHP (National Register of Historic Places)

2011. Maryland Historical Trust (MHT). This map shows NRHP sites in the Mid-Shore counties of Kent, Queen Anne, Caroline, Talbot, and Dorchester, on Maryland's Eastern Shore. Map data wa...

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Choptank River Heritage Watershed

2010. USDA-NRCS, 1221 College Park Drive, Suite 100, Dover, DE 19904. Shows watershed of the Choptank River and its tributaries, on Maryland's Eastern Shore.

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Clark Flood Zones: Ohio, United States

Ohio Geographically Referenced Information Program.

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Class A Wild Trout Streams - points: Pennsylvania

2018. Pennsylvania Fish and Boat Commission. Class A streams are streams that support a population of wild (natural reproduction) trout of sufficient size and abundance to support a long-term ...

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Class A Wild Trout Streams: Pennsylvania

2018. Pennsylvania Fish and Boat Commission. Class A streams are streams that support a population of wild (natural reproduction) trout of sufficient size and abundance to support a long-term ...

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Clermont Flood Zones: Ohio, United States

Ohio Geographically Referenced Information Program.

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Clinton Flood Zones: Ohio, United States

Ohio Geographically Referenced Information Program.

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Coastal Floodplains: Pennsylvania

1996. Penn State ORSER/ERRI. Coastal floodplains from LLRWS data.

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Coastal Zone Management Areas: Michigan

2016. State of Michigan. A detailed digital geographic representation of the coastal zone management boundary applied under the Coastal Zone Management Act of 1972 (P.L. 92...

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Coastal Zones: Pennsylvania

2004. Pennsylvania Department of Environmental Protection. The Coastal Zone Boundary delineates Pennsylvania's two coastal zones: the Delaware Estuary Coastal Zone located in southeastern Pennsylvania, and ...

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Columbiana Flood Zones: Ohio, United States

Ohio Geographically Referenced Information Program.

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Community Rating System Special Flood Hazard Areas: Washington, D.C., United States

City of Washington, DC. The dataset contains locations and attributes of the Community Rating System - Special Flood Hazard Areas created as part of the DC Geographic Info...

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Contours 10ft: Philadephia, Pennsylvania

2004. City of Philadelphia Water Department - Information Systems Technology. Planimetric Coverage containing the delineation of topographic contours at ten foot intervals. Annotation of Contour Line elevations exists. Annota...

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Coshocton Flood Zones: Ohio, United States

Ohio Geographically Referenced Information Program.

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Council Districts: Philadephia, Pennsylvania

1990. City Planning Commission (PCPC) Department - GIS Division. District boundaries of municipal legislators.

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County Seats for the Delaware River Basin Area: Pennsylvania

2004. County Seats (county capitals) for the Delaware River Basin Area.

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Crawford Flood Zones: Ohio, United States

Ohio Geographically Referenced Information Program.

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Creeks Streams: Franklin County, Ohio

Franklin County, Ohio. Franklin County Auditor - Local Government Information Model - Reference Data Feature Class - Water (Stream Lines)This layer contains line features...

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Critical Property Intersecting Old Floodplains: Ohio, 2018

2018. Ohio Geographically Referenced Information Program. Feature layer generated from running the Find Existing Locations solutions for Ohio 2018 Critical Property.Expression Ohio 2018 Critical Property i...

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Cultural Assessment of the Chesapeake Bay Watershed

2000. Multiple TIFF and layer files pertaining to Cultural Assessment of the Chesapeake Bay watershed Growth and development not only threaten lands of h...

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Culvert Inventory, Lake County: Minnesota

Culvert Inventory, Lake County: Minnesota

2017. This layer contains data collected to contribute to a culvert inventory of Lake County, Minnesota. Information includes: stream name, road name, st...

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Cuyahoga Flood Zones: Ohio, United States

Ohio Geographically Referenced Information Program.

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Dam Locations: Allegheny County, Pennsylvania

County of Allegheny, PA. This dataset shows the point locations of dams in Allegheny County. If viewing this description on the Western Pennsylvania Regional Data Center s ...

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Dams: Centre County, Pennsylvania

1995. Centre County Government. Point Feature Class - It was originally captured as part of the 1995 Aerial Imagery project completed by Kimball.

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Dams under the Jurisdiction of the Indiana Department of Natural Resources: Indiana

Dams under the Jurisdiction of the Indiana Department of Natural Resources: Indiana

2016. Indiana Department of Natural Resources, Division of Water. A data set showing the locations of dams in Indiana that are under the jurisdiction of the Indiana Department of Natural Resources.

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Darke Flood Zones: Ohio, United States

Ohio Geographically Referenced Information Program.

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Data Downloads FTP (Google Drive) for Ottawa County, Ohio

2006-present. Ottawa County Engineer's and Auditor's Offices. FTP Google Drive containing downloadable shapefiles, geodatabases for parcels, addresses, transportation, boundaries, schools hydrology, geology, a...

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Defiance Flood Zones: Ohio, United States

Ohio Geographically Referenced Information Program.

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Delaware Flood Zones: Ohio, United States

Ohio Geographically Referenced Information Program.

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Delaware River Basin boundary - line: Pennsylvania

2004. line boundary of the Delaware River basin.

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Delaware River Basin boundary - polygon: Pennsylvania

2004. polygon boundary of the Delaware River Basin.

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Delaware River Basin Catchments Based on Strahler Stream Order 1 Determined from a 900-cell Flow Accumulation Raster in Areas Not Covered by NHD Catchments for 8-digit HUC: Pennsylvania

2016. United States Geological Survey. In 2012, catchments were generated in the Delaware River Basin for 8-digit HUCs in the areas underlain by the Marcellus Shale (all of 02040101, 020...

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Delaware River Basin Catchments Based on Strahler Stream Order 1 from National Hydrography Dataset (NHD) Stream Centerline Features for 8-digit HUC: Pennsylvania

2016. United States Geological Survey. In 2012, catchments were generated in the Delaware River Basin for 8-digit HUCs in areas underlain by the Marcellus Shale (all of 02040101, 0204010...

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Delaware River Basin Commission watershed boundaries - HUC 8: Pennsylvania

2004. watershed boundaries for the Delaware River Basin at the HUC 8 level.

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Delaware River Basin county boundaries - clipped: Pennsylvania

2004. County boundaries clipped to the Delaware River Basin.

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Delaware River Basin county boundaries - unclipped: Pennsylvania

2004. County boundaries that touch the Delaware River Basin, not clipped to the basin boundary.