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  GIS Data Sets
by Topic

Political/Administrative Boundaries | Demographics | Transportation | Infrastructure | Land Use/Land Cover | Surface Hydrology | Hypsography/Bathymetry | Soils | Geology/Groundwater | DRG/DLG | Satellite Imagery | Digital Orthophotography | Other Indexes

 
Political/Administrative Boundaries
U.S. County Boundaries
United States Geological Survey (USGS)
This is a coverage of the county boundaries of the conterminous United States (AK, HI and Puerto Rico are available separately). The lines were extracted from U.S. Census Topologically Integrated Geographic Encoding and Referencing (TIGER) line-files. Scale is 1:100,000.

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Demographics
TIGER line-files
United States Census Bureau
This is the U.S. Census Bureau's Topologically Integrated Geographic Encoding and Referencing system. Find links to up-to-date and archived files.

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Transportation
Great Lakes Assessment Project
Provided by the USGS Upper Midwest Environmental Sciences Center, this site has many datasets for Michigan, Minnesota, and Wisconsin.

Transportation Networks
United States Department of Transportation (DOT)
National databases of highways, railways, and waterways at a scale of 1:100,000.

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Infrastructure
National Inventory of Dams
United States Army Corps of Engineers (USACE)
The National Inventory of Dams is the Water Control Infrastructure, Inventory of Dams 1998-1999 Geographic Information System (GIS) Web site created by the United States Army Corps of Engineers (USACE) in cooperation with Federal Emergency Management Agency's (FEMA) National Dam Safety Program.

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Land Use Land Cover
Great Lakes Assessment Project
Provided by the USGS Upper Midwest Environmental Sciences Center, this site has many datasets for Michigan, Minnesota, and Wisconsin.

Great Lakes GIS
Great Lakes Fishery Commission
The Great Lakes GIS Project proposes to provide comprehensive GIS projects for each Great Lake and the entire Great Lakes basin and provide recommendations for long-term distribution and maintenance of GIS-based data.

Land Use Land Cover
United States Geological Survey (USGS)
Click on the LULC bar to gain access to Land Use Land Cover data. The datasets are derived from thematic overlays registered to 1:250,000-scale base maps and provides information on urban or built up land, agricultural land, rangeland, forest land, water, wetlands, barren land, tundra, and perennial snow or ice.

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Surface Hydrology
Great Lakes Assessment Project
Provided by the USGS Upper Midwest Environmental Sciences Center, this site has many datasets for Michigan, Minnesota, and Wisconsin.

Great Lakes GIS
Great Lakes Fishery Commission
The Great Lakes GIS Project proposes to provide comprehensive GIS projects for each Great Lake and the entire Great Lakes basin and provide recommendations for long-term distribution and maintenance of GIS-based data.

National Hydrography Dataset
United States Geological Survey (USGS)
The National Hydrography Dataset (NHD) is a comprehensive set of digital spatial data that contains information about surface water features.

National Inventory of Dams
United States Army Corps of Engineers (USACE)
The National Inventory of Dams is the Water Control Infrastructure, Inventory of Dams 1998-1999 Geographic Information System (GIS) Web site created by the United States Army Corps of Engineers (USACE) in cooperation with Federal Emergency Management Agency's (FEMA) National Dam Safety Program.

National Waterway Network
United States Army Corps of Engineers (USACE)
The National Waterway Network (NWN) is a geographic database of navigable waterways in and around the United States, for analytical studies of waterway performance, for compiling commodity flow statistics, and for mapping purposes.

Watersheds/HUCs
1:250,000-scale Hydrologic Units of the United States
United States Geological Survey (USGS)

National Wetlands Inventory
Download National Wetlands Inventory (NWI) datasets related to the Nation's wetlands and deepwater habitats.

NOHSRC datasets
National Weather Service
The National Operational Hydrologic Remote Sensing Center's (NOHSRC) hydro and weather related GIS data.

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Hypsography/Bathymetry
Digital Elevation Models (DEM)
United States Geological Survey (USGS)
Check the USGS's raster based elevation data for the nation.

GLERL Data Library
The Great Lakes Environmental Research Laboratory's (GLERL) data library with topics including bathymetry, biologic, historic, and real-time data.

Great Lakes Assessment Project
Provided by the USGS Upper Midwest Environmental Sciences Center, this site has many datasets for Michigan, Minnesota, and Wisconsin.

Great Lakes Data Rescue
U.S. National Geophysical Data Center (NGDC), NOAA
NOAA is actively engaged in a program to rescue Great Lakes seismic reflection, bathymetric and sediment-sample data and place them in established marine geological and geophysical data repositories at the NGDC.

Great Lakes GIS
Great Lakes Fishery Commission
The Great Lakes GIS Project proposes to provide comprehensive GIS projects for each Great Lake and the entire Great Lakes basin and provide recommendations for long-term distribution and maintenance of GIS-based data.

National Elevation Dataset (NED)
U.S. Geological Survey (USGS)
NED is the result of the maturation of the USGS effort to provide 1:24,000-scale Digital Elevation Model (DEM) data for the conterminous U.S.

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Soils
National SSURGO Database
Natural Resources Conservation Service (NRCS)
The Soil Survey Geographic (SSURGO) datasets are available for selected counties and areas throughout the United States and its territories. You will need to know the State Soil Survey Area ID (stssaid) to recognize which files to download.

National STATSGO Database
Natural Resources Conservation Service (NRCS)
The State Soil Geographic (STATSGO) database is a generalized version of the detailed soil survey data. The level of mapping is designed to be used for broad planning and management uses covering state, regional, and multi-state areas.

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Geology/Groundwater
National Geologic Map Database
United States Geological Survey (USGS)
Search the USGS's vast catalog of paper and digital geologic maps. The site is maintained through the National Cooperative Geologic Mapping Program in cooperation with the Association of American State Geologists.

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DRG/DLG
Digital Line Graphs (DLG)
United States Geological Survey (USGS)
The USGS's DLG are digital representations by points, lines and areas of planimetric information derived from 7.5- and 15-minute scale topographic quadrangle maps (large-scale); 30- by 60-minute intermediate scale maps; and 1:2 million-scale (small scale) sectional National Atlas maps. All DLG data distributed by the United States Geological Survey (USGS) are DLG-Level 3 (DLG-3), which means the data contain a full range of attribute codes, have full topological structuring, and have passed certain quality-control checks.

Digital Raster Graphics (DRG)
United States Geological Survey (USGS)
A digital raster graphic (DRG) is a scanned image of a U.S. Geological Survey (USGS) standard series topographic map, including all map collar information. The image inside the map neatline is georeferenced to the surface of the earth and fit to the Universal Transverse Mercator projection.

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Satellite Imagery
Canada Centre for Remote Sensing
Search for different types of satellite images of Canada.

Great Lakes Forest Information Center
Michigan State University (MSU)
Satellite imagery and environmental / socioeconomic information for Minnesota, Wisconsin and Michigan

Products and services available to the public
National Geospatial-Intelligence Agency
Information on how to order NGA products along with other agencies.

Satellite imagery of Wisconsin and adjacent lakes
Environmental Remote Sensing Center, University of Wisconsin-Madison
Daily MODIS Imagery of Wisconsin, Lakes Superior, and Lake Michigan

Space Imaging
Provides a various types of imagery, including different resolutions of satellite images to synthetic aperture radar.

Spot Image
French company that sells images from their fleet of satellites.

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Digital Orthophotography
Digital Orthophoto Quads (DOQ)
United States Geological Survey (USGS)
A DOQ is a computer generated image of an aerial photograph in which displacements caused by camera orientation and terrain have been removed.

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Other Indexes
Geospatial Data & Information Products
United States Geological Survey (USGS)
Browse through a complete listing of the USGS Earth Resources Observation Systems (EROS) Data Center's digital datasets..

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Updated: November 23, 2017
Maintained by: Stuart Eddy, seddy@glc.org
Selected Photos: Copyright ©John and Ann Mahan
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