Soils: surface materials
Glacial Geology
Depth to Bedrock (approximate)
Bedrock
Mesozoic Cretaceous
Mesozoic Jurass
Paleozoic Devonian
Paleozoic Ordovician
Paleozoic Cambrian
Precambrian Proterozoic
Precambrian Archean
The original geologic data is from the Minnesota Geological Survey and the soils data is from U.S. Dept. of Agriculture. The DNR compiled and generalized the original data for reference only.