Big Ten Academic Alliance Geospatial Discovery Portal

Big Ten Academic Alliance Geoportal

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1. 108th Congressional Districts for the Delaware River Basin Area: Delaware River Basin, 2004

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

2. 6-Digit Accounting Units, Hydrologic Units: Indiana, 2002

2002. (creation): US Geological Survey and (compilation): Bernardin, Lochmueller and 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...

3. 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 ...

4. Allegheny County - Floodplain: Pennsylvania, 2000

2000. Allegheny County Division of Computer Services Geographic Information Systems Group. In an effort to expedite the permit review process for Water Obstruction and Encroachment Applications, the Pennsylvania Department of Environmenta...

5. Allegheny County - Hydrology Areas: Pennsylvania, 2016

2015. Allegheny County Division of Computer Services Geographic Information Systems Group. Rivers, Lakes, Ponds, Reservoirs, Hidden Lakes, Reservoirs or Ponds: If greater than 25 feet and less than 30 feet wide, is captured as a double li...

6. Allegheny County - Hydrology Lines: Pennsylvania, 2016

2015. Allegheny County Division of Computer Services Geographic Information Systems Group. Rivers, Lakes, Ponds, Reservoirs, Hidden Lakes, Reservoirs or Ponds: If greater than 25 feet and less than 30 feet wide, is captured as a double li...

7. Allegheny County - NWI (National Wetlands Inventory): Pennsylvania, 2000

2000. Allegheny County Division of Computer Services Geographic Information Systems Group. NWI (National Wetlands Inventory) digital data files are records of wetlands location and classification as defined by the U.S. Fish & Wildlife Ser...

8. Allegheny County - Watersheds: Pennsylvania, 2000

2000. Allegheny County Division of Computer Services Geographic Information Systems Group. Polygons marking borders of watersheds in Allegheny county.

9. Ambient and Fixed Station Network (FSN) Groundwater Monitoring Point Data (1985 - 1998): Pennsylvania, 1999

1985. PA 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...

10. Aquatic Resources Group: Pennsylvania, 2006

1992. Natural Lands Trust with input data from PA DEP. This raster dataset is a compilation of several data sets that have been combined to create an overall aquatic resources conservation value raster ...

11. 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 ...

12. Aquifer Characteristics Of Glacial Drift: Michigan

2040. State of Michigan. This shape file was derived from the 1981 publication of the Hydrological Atlas of Michigan plate 26. Three plates of the Aquifer Characteristics o...

13. Area Fisheries Managers Areas: Pennsylvania, 2012

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

14. Area Fisheries Managers Offices: Pennsylvania, 2012

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

15. 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 ...

16. 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...

17. Bacteria Monitoring Stations and Data Summaries, Derived from EPA BASINS 3: Indiana, 2003

2003. (compiler and editor): Bernardin, Lochmueller and Associates and (creator): U. S. Environmental Protection Agency. BACTERIA_MONITORING_EPA_IN is a point shapefile developed by the USEPA BASINS 3.0 program and edited by Bernardin, Lochmueller and Associates. Join...

18. Base Flood Elevation: Carver County, Minnesota

2014. CarverGIS. 2010 FEMA DFIRM base flood elevations.

19. Base Flow of Michigan Streams: Michigan

2037. 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...

20. 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...

21. Bathymetric Contours for Selected Lakes: Indiana, 2012

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 ...

22. Boat Landings Map: Scott County, Minnesota

2015. Scott County Information Technology. Boat Landings map showing boat landing locations within Scott County.

23. Boating Special Regulation Lakes (Polygons): Pennsylvania, 2016

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

24. Boating Special Regulation Streams: Pennsylvania, 2016

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

25. Boating Special Regulation Waters (Points): Pennsylvania, 2016

2015. Pennsylvania Fish and Boat Commission. This layer contains those lakes and streams as point features within Pennsylvania that have specifc special regulations related to boating as defin...

26. Boundaries of exceptional value watersheds: Pennsylvania , 1996

1995. Environmental Resources Research Institute. Watersheds of exceptional quality streams.

27. Boundary of Conneaut Lake: Pennsylvania, 1993

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.

28. Chemung Subbasin: Susquehanna River Basin, 2006

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

29. Chesapeake Bay Basin Major Watersheds: Pennsylvania, 1996

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

30. Chesapeake Bay Region State Boundaries: Pennsylvania, 1996

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

31. Chesapeake Bay Watershed land use/land cover v105: Chesapeake Bay, 2000

1999. University of Maryland and 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...

32. Chester County, PA Wetlands - Line: Pennsylvania, 1997

1997. U.S. Fish & Wildlife Service, National Wetlands Inventory. 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...

33. Chester County, PA Wetlands - Point: Pennsylvania, 1997

1997. U.S. Fish & Wildlife Service, National Wetlands Inventory. 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...

34. Choptank River Heritage Access: Maryland, 2011

2011. ChoptankRiverHeritage.org. Public landings and other river access points to the Choptank River and its tributaries, on Maryland's Eastern Shore.

35. Choptank River Heritage NRHP (National Register of Historic Places): Maryland, 2011

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...

36. Choptank River Heritage Watershed: Maryland, 2010

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.

37. City Council Wards with Demographics: Minneapolis, Minnesota, 2016

2012. City of Minneapolis GIS Office. Council ward boundaries with Council member contact information and enhanced population demographics from the 2010 U.S. Census.

38. Class A Wild Trout Streams - points: Pennsylvania, 2016

2016. 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 ...

39. Class A Wild Trout Streams: Pennsylvania, 2016

2016. 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 ...

40. Coastal Floodplains: Pennsylvania, 1996

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

41. Coastal Zone Management Areas: Michigan

2022. 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...

42. 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...

43. County Seats for the Delaware River Basin Area: Delaware River Basin, 2004

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

44. County Wetland Inventory Map: Scott County, Minnesota

2015. Scott County Information Technology. County Wetland Inventory map showing wetlands within Scott County.

45. Creeks and Streams: Bloomington, Indiana, 2016

2016. City of Bloomington, Indiana. Hydrology (Creeks Stream, Shoreline) features exported from the CIty's GIS. See summary description (txt) file for information about intended use, ...

46. Cultural Assessment of the Chesapeake Bay Watershed: Chesapeake Bay, 2000

1999. Multiple TIFF and layer files pertaining to Cultural Assessment of the Chesapeake Bay watershed Growth and development not only threaten lands of h...

47. Culvert Inventory: Lake County, Minnesota

2016. Lake County. This layer contains data collected to contribute to a culvert inventory of Lake County, Minnesota. Information includes: stream name, road name, st...

48. Dams under the Jurisdiction of the Indiana Department of Natural Resources: Indiana, 2010

2010. Indiana Department of Natural Resources, Division of Water (Data creator). A data set showing the locations of dams in Indiana that are under the jurisdiction of the Indiana Department of Natural Resources.

49. Delaware River Basin boundary - line 2004

2004. Delaware River Basin Commission (DRBC). Boundary of the Delaware River basin - line.

50. Delaware River Basin boundary - polygon: Delaware River Basin, 2004

2004. Delaware River Basin Commission (DRBC). boundary of the Delaware River Basin.

51. Delaware River Basin Commission watershed boundaries - HUC 11: Delaware River Basin, 2004

2004. Delaware River Basin Commission (DRBC). watershed boundaries for the Delaware River Basin at the HUC 11 level.

52. Delaware River Basin Commission watershed boundaries - HUC 8: Delaware River Basin, 2004

2004. Delaware River Basin Commission (DRBC). watershed boundaries for the Delaware River Basin at the HUC 8 level.

53. Delaware River Basin county boundaries - clipped: Delaware River Basin, 2004

2004. Delaware River Basin Commission (DRBC). County boundaries clipped to the Delaware River Basin.

54. Delaware River Basin county boundaries - unclipped: Delaware River Basin, 2004

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

55. Delaware River Basin creeks and rivers - clipped 2004

2004. Delaware River Basin Commission (DRBC). creeks and rivers clipped to the Delaware River Basin.

56. Delaware River Basin major cities: Delaware River Basin, 2004

2004. Delaware River Basin Commission (DRBC). major cities and towns within Delaware River Basin.

57. Delaware River Basin Reservoirs: Delaware River Basin, 2004

2004. Delaware River Basin Commission (DRBC). Reservoirs located within the Delaware River Basin.

58. Delaware River Basin sub-basins: Delaware River, 2004

2004. Delaware River Basin Commission (DRBC). sub-basins within the Delaware River Basin.

59. Delaware River boundary: Delaware River, 2004

2004. Delaware River Basin Commission (DRBC). Boundary of the Delaware river within the Delaware River Basin.

60. Delaware River Bridges: 2004

2004. Delaware River Basin Commission (DRBC). Bridges over the Delaware River within the Delaware River Basin.

61. Delaware River Islands: Delaware River, 2004

2003. Delaware River Basin Commission (DRBC). islands located on the Delaware River within the Delaware River Basin.

62. Delaware state boundary - line 2004

2004. Delaware River Basin Commission (DRBC). Line boundary for the state of Delaware.

63. Delaware Water Gap Color Infra-Red Photos: Delaware River Basin, 2000

2000. US Geological Survey (USGS). arieal photography of the Delaware Water Gap including the surrounding watersheds and tributaries.

64. Delaware Water Gap landuse: Delaware, 2000

2000. US Geological Survey (USGS). Landuse for the Delaware Water Gap and Surrounding watersheds and tributaries.

65. Delaware watersheds within the Delaware River Basin: Delaware River, 2004

2003. Delaware River Basin Commission (DRBC). Delaware watersheds within the Delaware River Basin.

66. Designated Water Features - Trout Stream Designation - PLS Sections: Minnesota

2015. Minnesota Department of Natural Resources (DNR) - Division of Fisheries. This data layer shows which Public Land Survey (PLS) Sections contain designated trout streams according to MN Rules Chapter 6264. See link (http:/...

67. Designated Water Features - Wild, Scenic and Recreational Rivers: Minnesota

2014. Minnesota Department of Natural Resources (DNR). This layer contains designated Wild, Scenic & Recreational Rivers in Minnesota as specified in 1997 MN Rules 6105.Segments of rivers are coded as s...

68. Digital Flood Insurance Rate Map Database, Pennsylvania - various layers clipped to counties: Pennsylvania, 2005

2012. Federal Emergency Management Agency. various layers clipped to counties - The Digital Flood Insurance Rate Map (DFIRM) Database depicts flood risk information and supporting data used ...

69. Ditches: Rice County, Minnesota

2017. Rice County, Minnesota. Ditches in Rice County, MN.

70. DNR Hydrography - Fisheries Reclamation Events: Minnesota

2007. Minnesota Department of Natural Resources (DNR). This layer shows waterbodies that have been treated for fish removal (i.e., "reclaimed") by DNR Fisheries. Some waterbodies have had multiple treat...

71. DNR Hydrography - Fishing in the Neighborhood (FiN) Ponds: Minnesota

2014. Minnesota Department of Natural Resources (DNR). This layer represents ponds included in DNR's Fishing in the Neighborhood (FiN) program, described online at: http://www.dnr.state.mn.us/fishing/fi...

72. DNR Hydrography - Large Lakes in: Minnesota

2007. DNR (Department of Natural Resources) Division of Fish & Wildlife - Fisheries Unit. This layer shows the 10 large lakes involved in the Minnesota DNR Fisheries Large Lake Program. These lakes have surface areas greater than 15,000 ...

73. DRAFT Vulnerable Groundwater Areas: Minnesota

2017. Minnesota Department of Agriculture. This Vulnerable Groundwater Areas GIS layer illustrates where one of 3 conditions are met across the state. The first condition includes soil mappi...

74. Drainage Districts: Iowa

2017. Iowa DNR. This GIS coverage represents an approximation of the public drainage district boundaries in Iowa. It also represents the infrastructure of the drai...

75. Drinking Water Supply Management Area for Surface Water (DWSMA-SW): Minnesota

2015. Minnesota Department of Health. Drinking water supply management area for a surface water intake (DWSMA-SW) is the Minnesota Department of Health (MDH) endorsed surface and subsur...

76. Drinking Water Supply Management Areas: Minnesota

2017. Minnesota Department of Health. These sets of data include the drinking water supply management area boundaries and the vulnerability levels within each management area in Minneso...

77. Eight-digit Subbasin Watershed Boundaries: Indiana, 2011

2011. Sally L. Letsinger (digital compiler), U.S. Geological Survey (compiler), U.S. Department of Agriculture, Natural Resources Conservation Service (compiler), and Indiana Geological Survey (digital compiler). The following is extracted from USDA, NRCS metadata -- This data set, part of the Watershed Boundary data set (WBD), is a complete digital hydrolog...

78. Emergency Response Areas (ERA): Minnesota

2015. Minnesota Department of Health - Environmental Health Division - Source Water Protection Unit. Emergency response area (ERA) is the Minnesota Department of Health (MDH) approved surface and subsurface area surrounding a public water supply we...

79. Environmental Data: Ramsey County, Minnesota

2016. Ramsey County. This file geodatabase contains datasets that include soil survey (SSURGO) and open water.

80. Erie Tributaries Open Fishing - Access Points: Pennsylvania, 2016

2016. This layer contains the locations of fishing access points that have been identified by the Pennsylvania Fish and Boat Commission and are public or...

81. Erie Tributaries Open Fishing - Access Polygons: Pennsylvania, 2016

2016. This layer contains the locations of fishing access areas that have been identified by the Pennsylvania Fish and Boat Commission and are public or ...

82. Erie Tributaries: Pennsylvania, 2013

2013. This layer contains flowing waters from the Pennsylvania Fish and Boat Commission Fisheries Resource Database located around the Lake Erie Steehhea...

83. Estimated Groundwater Recharge: Michigan

2041. State of Michigan. This data set provides an estimate of annual groundwater recharge for each public land survey section in Michigan.

84. Estimated Groundwater Recharge: Michigan

2015. State of Michigan. This data set provides an estimate of annual groundwater recharge for each public land survey section in Michigan.

85. Explore PA Trails - WaterTrails: Pennsylvania, 2012

2006. Pennsylvania Fish and Boat Commission. Water trails designated by the Pennsylvania Fish and Boat Commission in Pennsylvania. Visit http://sites.state.pa.us/PA_Exec/Fish_Boat/watertrails/...

86. Facilities in the National Pollutant Discharge Elimination System: Indiana, 2013

2013. Indiana Department of Environmental Management, Office of Water Quality. NPDES_FACILITY_IDEM_IN is a point shapefile that contains National Pollutant Discharge Elimination System (NPDES) Program Facilities in Indiana, pr...

87. Federal Emergency Management Agency (FEMA) Floodplain: Clay County, Minnesota, 2014

2014. Clay County GIS. FEMA floodplain for Clay County.

88. FEMA Digital Flood Rate Insurance Maps (DFIRM): Minnesota

2017. Federal Emergency Management Agency (FEMA). The Federal Emergency Managment Agency and the MNDNR produce Digital Flood Insurance Rate Maps (DFIRM) for selected counties in the state. These ma...

89. FEMA Flood Plain Map: Scott County, Minnesota

2015. Scott County Information Technology. FEMA Flood Plain map showing flood plain locations within Scott County.

90. FIRM Floodplains and Flood Hazard Zones: Indiana, 2014

2014. Indiana Department of Natural Resources. This polygon layer represents floodplains created from FEMA Flood Rate Insurance Maps (FIRM). The layer can be symbolized to show the following flo...

91. Fish Consumption Advisories, Susquehanna River Basin, 2011

2011. Susquehanna River Basin Commission (SRBC). Polyline shapefile representing streams in the Susquehanna River Basin that have a fish consumption advisory listing due to PCBs and/or mercury. Th...

92. Fishing and Boating Access Points: Pennsylvania, 2015

2015. Pennsylvania Fish and Boat Commission. This layer contains the locations of fishing and boating access areas that have been veirified by the Pennsylvania Fish and Boat Commission and are...

93. Fishing Hot Spots: Pennsylvania, 2012

2012. Pennsylvania Fish and Boat Commission. Suggested places to fish in Pennsylvania by the PA Fish and Boat Commission. The list of suggested places is compiled by Commission staff per PFBC ...

94. Fishing Special Regulation Lakes (Points): Pennsylvania, 2016

2016. Pennsylvania Fish and Boat Commission. This layer contains the lakes that are part of the Pennsylvania Fish and Boat Commission Fisheries Resource Database. These include lakes that are ...

95. Fishing Special Regulation Lakes (Polygons): Pennsylvania, 2016

2016. Pennsylvania Fish and Boat Commission. This layer contains the lakes that are part of the Pennsylvania Fish and Boat Commission Fisheries Resource Database. These include lakes that are ...

96. Fishing Special Regulation Streams: Pennsylvania, 2016

2016. Pennsylvania Fish and Boat Commission. This layer contains flowing waters from the Pennsylvania Fish and Boat Commission Fisheries Resource Database that are under fishing special regula...

97. Flood Inundation Mapping for Susquehanna River: Harrisburg PA, 2013

2013. United States Army Corps of Engineers (USACE). This layer was created as part of a Flood Inundation Map Library developed for display within the NOAA National Weather Service's Advanced Hydrolog...

98. Flood Plain, Indianapolis, Indiana

2017. City of Indianapolis-Marion County. Polygon file displaying the flood plains within Indianapolis and Marion County, Indiana. Data projection: NAD 1983 StatePlane Indiana East FIPS 130...

99. Floodplain - Effective FEMA Floodplain: Maryland

2016. Maryland iMap. This is a MD iMAP hosted service. Find more information at http://imap.maryland.gov. The Effective Floodplain layer represents the official regulat...

100. Floodplain - Preliminary FEMA Floodplain: Maryland

2016. Maryland iMap. This is a MD iMAP hosted service. Find more information at http://imap.maryland.gov. This layer offers the anticipated floodplain boundaries howeve...