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Minnesota Geological Survey

Online Map Services-Preliminary Versions, Changes will occur.


MGS is in the process of migrating maps and digital information to online versions in an effort to increase accessibility and provide for more general use. We are doing this through web-enabled map services. A preview of the map can be viewed and queried within the web browser by clicking on the link in the Web Map column. Each preview starts an individual web application for that map. The applications work in most browsers, but will likely work better in more recent versions. Help files within the map preview will provide further guidance on use. Below is a list of the currently available services. To use the service in ArcMap click on the name in the Link-to-service column. Either download the file or let it open with ArcGis. Queries can be made with the Identify tool in ArcMap.

You can view all of the data sets listed below through our new

web map

Download to GIS
Web Map
S-21, State-scale bedrock geology
Vector based Minnesota bedrock geology map, 2011
Multi-scale surficial geology overview (raster)
Raster compilation of surficial geologic mapping in Minnesota with links to pdfs of published maps and to related GIS resources
Multi-scale bedrock geology overview (raster)
Raster compilation of bedrock geologic mapping in Minnesota with links to pdfs of published maps and to related GIS resources
Rock Properties 2011
Compilation of density and magnetic susceptibility measurements from outcrop and drill holes in Minnesota
Gravity Stations 2011
Compilation of gravity stations in Minnesota with new and revised locations
Bedrock Topography and Depth to Bedrock
Click on top left file to load rasters into ArcGis 10 desktop with 50 ft color intervals, bottom left to load rasters for use with geoprocessing commands. Link to right opens color interval map within the current browser.
Map Extent of Paleozoic and Mesozoic Rocks
Click on left file (mpk) to load file into ArcGis 10 desktop. The link to right opens a map within the current browser.
S-1 Quaternary Geology of Minnesota, 1982
Published Quaternary Geology map, Hobbs and Goebel, 1982. Digitized by LMIC circa 1995. Recoded at MGS 2008.
*Data from this service can be downloaded to a local computer by enabling the Distributed Geodatabase toolbar in ArcMap, selecting Extract Data and following instructions in the dialog boxes. The default action creates a new personal geodatabase (mdb) and retains the links to auxiliary tables. Extraction does not work if a file geodatabase is selected or newly created. The extract function only takes locations from within the display window, set an appropriate zoom level before extracting.