Big Ten Academic Alliance Geospatial Discovery Portal

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1. 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...

2. 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...

3. 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,...

4. 108th Congressional Districts for the Delaware River Basin Area'

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.

5. 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...

6. 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...

7. 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 ...

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

1999. 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...

9. Aquatic Resources Group: Pennsylvania

2006. 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 ...

10. Aquifer Characteristics Of Glacial Drift: Michigan

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

11. Area Fisheries Managers Areas: Pennsylvania

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

12. Area Fisheries Managers Offices: Pennsylvania

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

13. 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 ...

14. 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...

15. 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...

16. Base Flood Elevation: Carver County, Minnesota

2014. CarverGIS. 2010 FEMA DFIRM base flood elevations.

17. Base Flow of Michigan Streams: Michigan

2017. 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...

18. Base Flow of Michigan Streams: Michigan

2015. 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...

19. 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 ...

20. Best Fishing Waters - Lakes: Pennsylvania

2017. Pennsylvania Fish and Boat Commission. Lakes within Pennsylvania that contain known warmwater/coolwater species fishing opportunities. The data set was created by Pennsylvania Fish and B...

21. 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...

22. Bike Racks: Philadephia, Pennsylvania

2012. City of Philadelphia. 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...

23. Boating Special Regulation Lakes (Polygons): Pennsylvania

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

25. 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 specifc special regulations related to boating as defin...

26. Boundaries Of Exceptional Value Watersheds: Pennsylvania

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

27. 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.

28. 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 ...

29. Chemung Subbasin

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

30. Chesapeake Bay basin major watersheds

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

31. Chesapeake Bay region state boundaries

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

32. 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...

33. Choptank River Heritage Access

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

34. 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...

35. 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.

36. Class A Wild Trout Streams - points: Pennsylvania

2017. 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 ...

37. Class A Wild Trout Streams: Pennsylvania

2017. 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 ...

38. Coastal Floodplains: Pennsylvania

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

39. Coastal Zone Management Areas: Michigan

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

40. 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...

41. Council Districts: Philadephia, Pennsylvania

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

42. County Seats for the Delaware River Basin Area: Pennsylvania

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

43. 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, ...

44. 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...

45. 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...

46. 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.

47. Delaware River Basin boundary - line: Pennsylvania

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

48. Delaware River Basin boundary - polygon: Pennsylvania

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

49. Delaware River Basin Commission watershed boundaries - HUC 8: Pennsylvania

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

50. Delaware River Basin county boundaries - clipped: Pennsylvania

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

51. Delaware River Basin county boundaries - unclipped: Pennsylvania

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

52. Delaware River Basin creeks and rivers: Pennsylvania

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

53. Delaware River Basin major cities: Pennsylvania

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

54. Delaware River Basin Reservoirs: Pennsylvania

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

55. Delaware River Basin roads: Pennsylvania

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

56. Delaware River Basin sub-basins: Pennsylvania

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

57. Delaware River Basin watershed boundaries - HUC 11: Pennsylvania

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

58. Delaware River boundary: Pennsylvania

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

59. Delaware river bridges: Pennsylvania

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

60. Delaware River islands: Pennsylvania

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

61. Delaware state boundary - line: Pennsylvania

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

62. Delaware Water Gap Landuse: Pennsylvania

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

63. Delaware watersheds within the Delaware River Basin: Pennsylvania

2004. Delaware River Basin Commission (DRBC). Delaware watersheds within the Delaware River Basin.

64. 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:/...

65. 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...

66. Designated Water Trails: Michigan

2017. Minnesota Department of Natural Resources. Feature service of DNR managed GIS data to be published on the MI DNR Open Data site.

67. Designated Wetlands: Iowa

2017. Iowa Department of Natural Resources. Designated Wetlands This zip file contains a shapefile of the designated wetlands and their setback requirements.

68. Digital Flood Insurance Rate Map Database, Delaware

2016. The National Flood Hazard Layer (NFHL) data incorporates all Flood Insurance Rate Map (FIRM) databases published by the Federal Emergency Managemen...

69. Digital Flood Insurance Rate Map Database, District of Columbia

2016. The National Flood Hazard Layer (NFHL) data incorporates all Flood Insurance Rate Map (FIRM) databases published by the Federal Emergency Managemen...

70. Digital Flood Insurance Rate Map Database, Maryland

2016. The National Flood Hazard Layer (NFHL) data incorporates all Flood Insurance Rate Map (FIRM) databases published by the Federal Emergency Managemen...

71. Digital Flood Insurance Rate Map Database, New York

2016. The National Flood Hazard Layer (NFHL) data incorporates all Flood Insurance Rate Map (FIRM) databases published by the Federal Emergency Managemen...

72. Digital Flood Insurance Rate Map Database, Ohio

2016. The National Flood Hazard Layer (NFHL) data incorporates all Flood Insurance Rate Map (FIRM) databases published by the Federal Emergency Managemen...

73. Digital Flood Insurance Rate Map Database, Pennsylvania

2015. The FIRM is the basis for floodplain management, mitigation, and insurance activities for the National Flood Insurance Program (NFIP). Insurance ap...

74. Digital Flood Insurance Rate Map Database, Pennsylvania - various layers clipped to counties

2005. 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 ...

75. Digital Flood Insurance Rate Map Database, Virginia

2016. The National Flood Hazard Layer (NFHL) data incorporates all Flood Insurance Rate Map (FIRM) databases published by the Federal Emergency Managemen...

76. Digital Flood Insurance Rate Map Database, West Virginia

2016. The National Flood Hazard Layer (NFHL) data incorporates all Flood Insurance Rate Map (FIRM) databases published by the Federal Emergency Managemen...

77. Ditches: Rice County, Minnesota

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

78. 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...

79. Drainage Districts Data: Iowa

2017. Iowa Department of Natural Resources. Drainage Districts in Iowa This zip file contains a file geodatabase of drainage districts and their infrastructure.

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

1969. 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...

81. 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...

82. 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...

83. 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...

84. Empowerment Zones: Philadephia, Pennsylvania

2012. City Planning Commission (PCPC) Department - GIS Division. Commercial/industrial zones with special amenities.

85. Environmental Data: Ramsey County, Minnesota

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

86. Erie Tributaries Open Fishing - Access Points: Pennsylvania

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...

87. Erie Tributaries: Pennsylvania

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

88. Estimated Groundwater Recharge: Michigan

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

89. Explore PA trails - Water Trails: Pennsylvania

2017. 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/...

90. 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...

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

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

92. 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...

93. 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...

94. Fish Consumption Advisories for the Susquehanna River Basin: Pennsylvania

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...

95. Fish Species Occurrence Database: Pennsylvania

1998. Pennsylvania Fish and Boat Commission. Historical listing (1975-1995) of Pennsylvania fish species occurrences, as documented at 10,780 sampling points on streams and rivers throughout t...

96. Fishing Special Regulation Lakes (Points): Pennsylvania

2017. 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 ...

97. Fishing Special Regulation Lakes (Polygons): Pennsylvania

2017. 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 ...

98. Fishing Special Regulation Streams: Pennsylvania

2017. 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...

99. Flood Depths: Iowa

2018. Each zip file contains raster data for a specific HUC 08.

100. Flood Inundation Mapping for Susquehanna River in Harrisburg, Pennsylvania - 11-ft to 37-ft

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...