Big Ten Academic Alliance Geospatial Discovery Portal

Big Ten Academic Alliance Geoportal

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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...