Big Ten Academic Alliance Geospatial Discovery Portal

Big Ten Academic Alliance Geoportal

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100 Year all 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: 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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108th Congressional Districts for the Delaware River Basin Area'

2004. 108th Congressional Districts for the Delaware River Basin Area. These were compiled from the 4 basin states and combined into one layer.

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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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Ability to Produce Clean and Abundant Water - version 2: Pennsylvania

2016. Open Space Institute. In the original APCAW (v2) the Open Space Institute (OSI) sought to develop a metric to measure the relative capacity of small scale (HUC12) waters...

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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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Agricultural Water Quality Certification Program (MAWQCP) Pilot and Expanded Areas: Minnesota

Agricultural Water Quality Certification Program (MAWQCP) Pilot and Expanded Areas: Minnesota

2015. Minnesota Department of Agriculture. The Minnesota Agricultural Water Quality Certification Program (MAWQCP) is a voluntary opportunity for farmers and agricultural landowners to take ...

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Allen Flood Zones: Ohio, United States

Ohio Geographically Referenced Information Program.

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Ambient and fixed station network groundwater monitoring point data (1985 - 1998): Pennsylvania

1999. Pennsylvania Department of Environmental Protection. This coverage represents the point locations and data for 1,106 groundwater quality monitoring points sampled under the PA DEP Fixed Station Networ...

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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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ArcGIS REST Services Directory for Ashtabula County, Ohio

1938-present. ArcGIS REST site referencing layers for all common data types and more. Also contains aerial photography from 1938, 2006-2017 (4yrs). Contains refe...

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ArcGIS REST Services Directory for Butler County Auditor, Ohio

2014-present. ArcGIS REST site with references to parcels, hydrology, soils, boundaries, other basemap features, and more. Also contains aerial photography from ...

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ArcGIS REST Services Directory for Cincinatti, Ohio

1932-present. ArcGIS REST site referencing layers for all common data types and more. Also contains aerial photography from 1996-2017 (10yrs). Also references hi...

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ArcGIS REST Services Directory for Henry County, Ohio

2016-present. ArcGIS REST site referencing layers for all common data types and more.

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ArcGIS REST Services Directory for Lucas County, Ohio

1998-present. ArcGIS REST site referencing layers for parcels, boundaries, transportation, hydrology, utilities, and more. Also contains references to elevation ...

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ArcGIS REST Services Directory for Marion County, Ohio

2016-present. ArcGIS REST site referencing layers for parcels, boundaries, transportation, hydrology, utilities, and more. Also contains references to aerial pho...

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ArcGIS REST Services Directory for Wood County, Ohio

2014-present. ArcGIS REST site referencing layers for parcels, addresses, transportation, hydrology, geology, elevation, boundaries, and more. Also references ae...

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Area Fisheries Managers Areas: Pennsylvania

2012. Pennsylvania Fish and Boat Commission. Coverage areas of Pennsylvania Fish and Boat Commission Area Fisheries Managers (AFM).

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Area Fisheries Managers Offices: Pennsylvania

2012. Pennsylvania Fish and Boat Commission. Office locations of Pennsylvania Fish and Boat Commission Area Fisheries Managers (AFM).

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Ashland Flood Zones: Ohio, United States

Ohio Geographically Referenced Information Program.

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Ashtabula Flood Zones: Ohio, United States

Ohio Geographically Referenced Information Program.

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Assessed Waters, 2016 (Proposed): Minnesota

Assessed Waters, 2016 (Proposed): Minnesota

2017. 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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Assessed Waters: Minnesota, 2014 (Final)

2018-04-25. Minnesota Pollution Control Agency. This is a set of the waterbodies assessed by MPCA's surface water quality assessment process for the 2014 303(d)/305(b) integrated report to EPA. P...

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Assessed Waters: Minnesota, 2018 (Proposed)

Assessed Waters: Minnesota, 2018 (Proposed)

2018-04-25. Minnesota Pollution Control Agency. This is a proposed set of the waterbodies assessed by MPCA's surface water quality assessment process for the 2018 303(d)/305(b) integrated report ...

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Athens Flood Zones: Ohio, United States

Ohio Geographically Referenced Information Program.

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Auglaize Flood Zones: Ohio, United States

Ohio Geographically Referenced Information Program.

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Average Annual Groundwater Recharge: Metro Twin Cities, Minnesota

2009. 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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Bacteria Monitoring Stations and Data Summaries, Derived from EPA BASINS 3: Indiana

Bacteria Monitoring Stations and Data Summaries, Derived from EPA BASINS 3: Indiana

2003. Bernardin-Lochmueller & Associates. BACTERIA_MONITORING_EPA_IN is a point shapefile developed by the USEPA BASINS 3.0 program and edited by Bernardin, Lochmueller and Associates. Joi...

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Banks: Ohio, United States

Ohio Geographically Referenced Information Program.

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Base Flood Elevation: Carver County, Minnesota

2014. Carver County, Minnesota. 2010 FEMA DFIRM base flood elevations.

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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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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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Belmont Flood Zones: Ohio, United States

Ohio Geographically Referenced Information Program.

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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 Network and Supporting Datasets: Philadephia, Pennsylvania

2012. Streets Department. Philadelphia bike network and supporting datasets is an experimental dataset that combines various City of Philadelphia departments' datasets to su...

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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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Boundaries Of Exceptional Value Watersheds: Pennsylvania

1996. Environmental Resources Research Institute. Watersheds of exceptional quality streams.

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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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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 Ditches: Summit County, Ohio

2014. Ohio Geographically Referenced Information Program. Dataset created and maintained by the Summit County Engineer showing ditches within the Engineer's jurisdiction.

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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

2016. 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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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.