Geologic map of the Penokean orogen, central and eastern Minnesota, and accompanying text, RI-37, Plate 1
Description:
Interpretations of bedrock geology (distribution of rock at the land surface and beneath surface sediments) of the Penokean Orogen, East-Central Minnesota, scale 1:250,000.
Creator:
McSwiggen, Peter L., Morey, G.B., and Southwick, David L.