Big Ten Academic Alliance Geospatial Discovery Portal

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951.
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Watersheds of the Susquehanna River Basin at Aprrox. 1:24,000 Scale: Susquehanna River Basin

2006. Polygon shapefile that includes approximately 1:24,000 scale watersheds in the Susquehanna River Basin (2006 boundary). This file was created by me...

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Watersheds: Summit County, Ohio

County of Summit GIS.

953.
Polygon

Watersheds: Washtenaw County, Michigan

2010. Washtenaw County Drain Commissioner's Office. This feature class displays all of the largest drainage areas in Washtenaw County. It has been developed to meet the needs of upstream and downstre...

954.
Polygon

Waterways: Chicago, Illinois

2014. City of Chicago. Waterways in Chicago, including Lake Michigan, rivers, and lakes. The data can be viewed on the Chicago Data Portal with a web browser. To view or ...

955.
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Waterways: Lorain County, Ohio

Lorain County Auditor GIS Open Data. GIS layer composed of Lorain County Waterways.*Each layer has a different scale visibility. You may have to zoom in to a certain extent for the lay...

956.
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WCO Districts: Pennsylvania

2017. Pennsylvania Fish and Boat Commission. Pennsylvania Fish and Boat Commission Waterways Conservation Officer Districts.

957.
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Wellhead Protection Areas: Indianapolis, Indiana

2015. City of Indianapolis and Marion County - IndyGIS. Polygon file depicting wellhead protection areas, although with time of travel, in and just outside the Marion County, Indiana boundaries.Data proj...

958.
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Wellhead Protection Areas: Michigan

2015. State of Michigan. Wellhead protection areas represent the land surface area that contributes ground water to wells serving public water supply systems throughout Mic...

959.
Wellhead Protection Areas: Minnesota

Wellhead Protection Areas: Minnesota

2014. Minnesota Department of Health. Wellhead Protection Area (WHPA) is the Minnesota Department of Health (MDH) approved surface and subsurface area surrounding a public water supply ...

960.
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West Branch of the Delaware River boundary: Pennsylvani

2004. boundary of the West Branch of the Delaware River.

961.
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West Branch Susquehanna Subbasin: Susquehanna River Basin

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

962.
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Wetland: Cuyahoga Soil & Water Conservation District: 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...

963.
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Wetland Maps: Maryland, 1972

ArcGIS Online for Maryland. This is a MD iMAP hosted service. Find more information on http://imap.maryland.gov.This data layer contains the 1972 Wetland Maps. These are guida...

964.
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Wetland: National Wetlands Inventory: 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...

965.
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Wetland Types: Washington, D.C.

2015. City of Washington, DC. National Wetlands Inventory. NWI digital data files are records of wetlands location and classification as defined by the U.S. Fish Wildlife Servic...

966.
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Wetlands - Line: Chester County, Pennsylvania

1997. U S Fish and Wildlife Service. NWI digital data files are records of wetlands location and classification as defined by the U.S. Fish & Wildlife Service. This dataset is a compil...

967.
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Wetlands - Point: Chester County, Pennsylvania

1997. U S Fish and Wildlife Service. NWI digital data files are records of wetlands location and classification as defined by the U.S. Fish & Wildlife Service. This dataset is a compil...

968.
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Wetlands - Wetlands, Linear (Department Of Natural Resources): Maryland

2016. ArcGIS Online for Maryland. This is a MD iMAP hosted service layer. Find more information at http://imap.maryland.gov.The Maryland Department of Natural resources began updati...

969.
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Wetlands - Wetlands, Linear (Special State Concern): Maryland

2016. ArcGIS Online for Maryland. This is a MD iMAP hosted service layer. Find more information at http://imap.maryland.gov.In Maryland certain wetlands with rare, threatened, endan...

970.
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Wetlands - Wetlands (National Wetlands Inventory): Maryland

2016. ArcGIS Online for Maryland. This is a MD iMAP hosted service layer. Find more information at http://imap.maryland.gov.This data set represents the extent, approximate location...

971.
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Wetlands - Wetlands, Polygon (Department Of Natural Resources): Maryland

2016. ArcGIS Online for Maryland. This is a MD iMAP hosted service layer. Find more information at http://imap.maryland.gov.The Maryland Department of Natural resources began updati...

972.
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Wetlands - Wetlands, Polygon (Special State Concern): Maryland

2016. ArcGIS Online for Maryland. This is a MD iMAP hosted service layer. Find more information at http://imap.maryland.gov.In Maryland certain wetlands with rare, threatened, endan...

973.
Wetlands and Deepwater Habitats of the National Wetlands Inventory (NWI): Indiana

Wetlands and Deepwater Habitats of the National Wetlands Inventory (NWI): Indiana

2014. United States Fish and Wildlife Service. WETLANDS_NWI_USFWS_IN.SHP provides the extent and locations of wetlands and deepwater habitats in Indiana. The following is excerpted from metadat...

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Polygon

Wetlands: Becker County, Minnesota, 2013

2013. Shapefile of wetlands in Becker County, Minnesota.

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Polygon

Wetlands LaCrosse County, Wisconsin, 2015

2015. La Crosse County Land Records GIS Department. This polygon data layer represents wetlands for La Crosse County, Wisconsin in 2015. It is a feature class within the geodatabase LaCrosse_Wetlands...

976.
Wetlands: Maryland, 1972

Wetlands: Maryland, 1972

1972. ArcGIS Online for Maryland. This is a MD iMAP hosted service. Find more information on http://imap.maryland.gov.This is a map service of the 1972 Wetland Maps. These are guida...

977.
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Wetlands Of Dupage County Illinois: Dupage County, Illinois

2016. DuPage County Illinois. Wetlands.

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Wetlands: Vanderburgh County, Indiana, United States

Evansville Vanderburgh County Area Plan.

979.
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Wilderness Trout Streams: Pennsylvania

2015. Pennsylvania Fish and Boat Commission. This layer contains flowing waters from the Pennsylvania Fish and Boat Commission Fisheries Resource Database that are under the Wilderness Trout D...

980.
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Working Waterfronts - Working Waterfront Parcels: Maryland

2016. ArcGIS Online for Maryland. This is a MD iMAP hosted service layer. Find more information at http://imap.maryland.gov.In 2012 The Chesapeake and Coastal Service (CSS), a divis...

981.
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Working Waterfronts - Working Waterfront Points: Maryland

2016. ArcGIS Online for Maryland. This is a MD iMAP hosted service layer. Find more information at http://imap.maryland.gov.In 2012 The Chesapeake and Coastal Service (CSS), a divis...

982.
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WPC 4th Order Streams: Western Pennsylvania

2004. David Homans, Pennsylvania Natural Heritage Program. All Streams of 4th order or greater in the region surrounding data in the Pennsylvania Aquatic Database (PAD) developed by the Pennsylvania Natural...

983.
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WPC 5th Order Streams: Western Pennsylvania

2004. David Homans, Pennsylvania Natural Heritage Program. All Streams of 5th order or greater in the region surrounding data in the Pennsylvania Aquatic Database (PAD) developed by the Pennsylvania Natural...

984.
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WPC aquatic sampling locations: Western Pennsylvania

2004. Ohio River Valley Water Sanitation Commission. Point file outlining aquatic sampling locations (fish, chemistry and benthic macroinvertebrates) in the Ohio River Valley Water Sanitation Commissi...

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WPC Drainage area polygons for each RF3 river reach: Western Pennsylvania

2004. David Homans. Drainage area polygons for each RF3 river reach flowing in Pennsylvania.

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WPC HUC12 (includes percentage land-use): Western Pennsylvania

2004. USGS. 12 digit USGS hydrological unit code (HUC) watersheds within Pennsylvania. Includes percentage land-use information from the National Land Cover Da...

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WPC non-protected sites: Western Pennsylvania

2004. Pennsylvania Natural Heritage Program. Final export of all aquatic sampling sites from the Pennsylvania Aquatic Database (PAD) at the completion of Phase I of the Pennsylvania Aquatic Co...

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WPC RF3 river reaches (includes percentage land-use): Western Pennsylvania

2004. David Homans, Pennsylvania Natural Heritage Program. Drainage area polygons for each RF3 river reach flowing in Pennsylvania. Includes percentage land-use information from the National Land Cover Data...

989.
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Zebra Mussel Distribution: United States

2008. United States Geological Survey (USGS). The concern caused by the explosive spread of the zebra mussel, (Dreissena polymorpha), within the United States resulted in passage of the Nonindi...

990.
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Zoning Hydrology Line 2012: Philadelphia, Pennsylvania, United States

City of Philadelphia. For any questions or technical assistance please email maps@phila.gov.