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      Geologic Map of Minnesota - Quaternary Geology, (MGS Map S-1), 1982This layer describes the general distribution of surficial sediments in Minnesota, as delineated and classified by the Minnesota Geological Survey. It is a digital version of...
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      Geologic Map of Minnesota - Bedrock Geology (MGS Map S-21)This map is a new construct that incorporates existing geologic maps where prior mappers had adequate ground control, and new interpretations based on drill hole, geophysical,...
