Completed Aggregate resources evaluations have been completed on the following counties. Each resource evaluation contains the original maps and GIS data for download:
- Blue Earth
- Le Sueur
- Mille Lacs
- Portions of
St. Louis and Lake
- Seven County Metro Area*
Download compiled GIS data
Compiled Aggregate Resource Mapping GIS data and metadata are now available to download from Minnesota's Geospatial Commons:
View the GIS data on a Web Map
A compilation of completed Aggregate Resource Mapping GIS data is now available in a new interactive web map application.
* The Metropolitan Area was mapped by the Minnesota Geological Survey and Metropolitan Council. More information on Twin Cities Aggregate Resources. To order the printed map, M-102 (1999, 2 plates on 4 sheets) contact the Minnesota Geological Survey, 612-627-4780 . Digital map and data files are available at ftp://mgssun6.mngs.umn.edu/pub2/m-102/
Since this is a reconnaissance-level survey, site-specific evaluations are still necessary prior to any development of the resources, especially in regards to aggregate quality or environmental review. Factors such as ownership, zoning, protected waters and wetlands, environmental permitting, and other individual site characteristics are not part of the geologic resource assessment.