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100 Year Flood: Lycoming County, Pennsylvania

2008. The Digital Flood Insurance Rate Map (DFIRM) Database depicts flood risk information and supporting data used to develop the risk data. The primary...

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100 Year Flood Plain: Cuyahoga County, Ohio

Ohio Geographically Referenced Information Program. Cuyahoga County Planning Commission's Greenprint GIS features: Trails, Water Features, Wetlands, Open Space, Activity Nodes, Conservation Areas, Ri...

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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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500 Year Flood: Lycoming County, Pennsylvania

2008. The Digital Flood Insurance Rate Map (DFIRM) Database depicts flood risk information and supporting data used to develop the risk data. The primary...

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6-Digit Accounting Units, Hydrologic Units: Indiana

6-Digit Accounting Units, Hydrologic Units: Indiana

2002. United States Geological Survey and Bernardin-Lochmueller & Associates. WATERSHEDS_HUC06_USGS_IN is a polygon shapefile showing the boundaries of accounting units (HUA) in Indiana. Accounting units are noted by a 6-digi...

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Active Stream Area: Cuyahoga County, Ohio

Ohio Geographically Referenced Information Program. Cuyahoga County Planning Commission's Greenprint GIS features: Trails, Water Features, Wetlands, Open Space, Activity Nodes, Conservation Areas, Ri...

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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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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...

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Alluvial Fans: Crawford County, Pennsylvania

Crawford County PA Government. This data is a web map service (WMS) from directly connected to FEMA's GIS server. Any edits, changes, data updates are processed at their site an...

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Alt2 Levee Floodplains dt: Iowa

Iowa Department of Transportation. Hosted service for alternative 2 with levee for CP 3 Missouri Valley U.S. 30 bypass.

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Alt2 Levee Floodplains dt: Iowa

Iowa Department of Transportation. Hosted service with all alternatives and study area for CP 3 Missouri Valley U.S. 30 bypass.

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Alt2 Levee RiverStreams: Iowa

Iowa Department of Transportation. Hosted service for alternative 2 with levee for CP 3 Missouri Valley U.S. 30 bypass.

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Alt2 Levee RiverStreams: Iowa

Iowa Department of Transportation. Hosted service with all alternatives and study area for CP 3 Missouri Valley U.S. 30 bypass.

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Alt2 NoLevee Floodplains dt: Iowa

Iowa Department of Transportation. Hosted service with all alternatives and study area for CP 3 Missouri Valley U.S. 30 bypass.

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Alt2 NoLevee RiverStreams: Iowa

Iowa Department of Transportation. Hosted service with all alternatives and study area for CP 3 Missouri Valley U.S. 30 bypass.

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Alt5 Floodplains dt: Iowa

Iowa Department of Transportation. This is the map file with all alignments and resources.

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Alt5 streams dt: Iowa

Iowa Department of Transportation. This is the map file with all alignments and resources.

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Alt6 Levee Floodplains dt: Iowa

Iowa Department of Transportation. Hosted service with all alternatives and study area for CP 3 Missouri Valley U.S. 30 bypass.

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Alt6 Levee Floodplains dt: Iowa

Iowa Department of Transportation. Hosted service for alternative 6 for CP 3 Missouri Valley U.S. 30 bypass.

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Alt6 Levee RiverStreams: Iowa

Iowa Department of Transportation. Hosted service with all alternatives and study area for CP 3 Missouri Valley U.S. 30 bypass.

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Alt6 Levee RiverStreams: Iowa

Iowa Department of Transportation. Hosted service for alternative 6 for CP 3 Missouri Valley U.S. 30 bypass.

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Alt6 NoLevee Floodplains dt: Iowa

Iowa Department of Transportation. Hosted service with all alternatives and study area for CP 3 Missouri Valley U.S. 30 bypass.

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Alt6 NoLevee RiverStreams: Iowa

Iowa Department of Transportation. Hosted service with all alternatives and study area for CP 3 Missouri Valley U.S. 30 bypass.

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Anoka County GIS Data Downloads

1970-2019. Transportation Division, GIS Department. The Anoka County, Minnesota website GIS page provides an FTP service link for geospatial data download access. Geospatial datasets are available fo...

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Aquatic Resources Group: Pennsylvania

2006. This raster dataset is a compilation of several data sets that have been combined to create an overall aquatic resources conservation value raster ...

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Aquifer Characteristics Of Glacial Drift: Michigan

2015. State of Michigan. This data set was derived from the 1981 publication of the Hydrological Atlas of Michigan plate 26. Three plates of the Aquifer Characteristics of ...

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Assessed Waters, 2016 (Proposed): Minnesota

Assessed Waters, 2016 (Proposed): Minnesota

2016. Minnesota Pollution Control Agency. This is a proposed set of the waterbodies assessed by MPCA's surface water quality assessment process for the 2016 303(d)/305(b) integrated report ...

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Average Annual Groundwater Recharge: Minnesota

2015. Barr Engineering Company. This dataset contains long-term average (1975-2003) annual recharge estimates for the seven-county Twin Cities metropolitan area. Values are in inc...

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Base Flow Of Michigan Streams: Michigan

2017. State of Michigan. This data set provides estimates of the ground-water contribution to stream flow, frequently referred to as base flow, in cubic feet per second. Th...

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Base Flow Of Michigan Streams: Michigan

2015. State of Michigan. This data set provides estimates of the ground-water contribution to stream flow, frequently referred to as base flow, in cubic feet per second. Th...

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Basin Outlines Map: Allegheny County, Pennsylvania

County of Allegheny, PA. This basins dataset was created to initiate regional watershed approaches with respect to sewer rehabilitation. If viewing this description on the ...

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Bathymetric Contours for Selected Lakes: Indiana

Bathymetric Contours for Selected Lakes: Indiana

2012. Indiana Department of Natural Resources, Division of Fish and Wildlife. LAKE_BATHYMETRY_IDNR_IN.SHP provides bathymetric contours for the following 85 lakes in Indiana, with depths calculated from the average shoreline ...

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Becker County GIS Data Downloads

2013-2019. Information Technology, GIS Services. The Becker County, Minnesota website GIS & Parcel Data Downloads page provides access links for geospatial data downloads. Geospatial datasets are ...

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Best Fishing Waters - Lakes: Pennsylvania

2018. Pennsylvania Fish and Boat Commission. \u201cPennsylvanias Best Fishing Waters\u201d program identifies proven waters for specific species. This listing includes suggestions for distinct...

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Bike Racks: Philadephia, Pennsylvania

2012. This dataset is a combination of both bike racks installed in 2008 as a result of Adopt-a-rack program and racks installed by converting parking me...

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Boating Special Regulation Lakes (Polygons): Pennsylvania

2016. Pennsylvania Fish and Boat Commission. This layer contains those lakes within Pennsylvania that have specific special regulations related to boating as defined by the Pennsylvania Fish a...

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Boating Special Regulation Streams: Pennsylvania

2016. Pennsylvania Fish and Boat Commission. This layer contains those streams/rivers within Pennsylvania that have specific special regulations related to boating as defined by the Pennsylvan...

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Boating Special Regulation Waters (Points): Pennsylvania

2016. Pennsylvania Fish and Boat Commission. This layer contains those lakes and streams as point features within Pennsylvania that have specific special regulations related to boating as defi...

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Boundary of Conneaut Lake: Pennsylvania

1993. Loree Speedy, Western Pennsylvania Conservancy. Boundary of Conneaut Lake, Crawford County, Pennsylvania. This polyline does not include the many docks that extend into the lake.

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Carroll County GIS Open Data

2016-2019. Enterprise GIS Division. Carroll County Government's GIS Open Data site for exploring thematic topics covered and downloading GIS datasets. Datasets available include addr...

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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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Centerline: Mississippi River

2002-2008. US Army Corps of Engineers, St. Paul District Office. Mississippi River centerline data derived from USACE navigation sailing line (recommended track) data and on-screen digitized in areas of no data. ...

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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 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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Chesapeake Bay Watersheds: District of Columbia

City of Washington, DC. Chesapeake Bay watersheds. The dataset contains locations and attributes of HUC-11 watersheds, created as part of the DC Geographic Information Sys...

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Chisago County GIS Data Downloads

2019. Information Technology, GIS Office. The Chisago County, Minnesota website GIS Office page provides an access link to geospatial data downloads via their interactive mapping applicatio...

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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 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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City of Bloomington Data Portal

2005-2019. City of Bloomington Information & Technology Services Department. This Open Data Portal for the City of Bloomington, Indiana includes a large collection of downloadable geospatial resources. Common dataset topics...

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City of Evanston Open Data

2010-2019. City of Evanston GIS. Geospatial datasets are publicly available on the City of Evanston, Illinois GIS Services geospatial open data portal linked here. The geoportal pr...

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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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Clay County Open Data

2012-2019. Clay County GIS. The Clay County, Minnesota website GIS Department page provides a link to their ArcGIS Open Data Portal. Commonly available geospatial datasets inc...