Geology of the anorthosites of the Minnesota coast of Lake Superior, Bulletin 28, Plate 2
Description:
Interpretations of bedrock geology (distribution of rock at the land surface and beneath surface sediments) of Townships 56 North, Range 7 West and a portion of Township 56 North, Range 8 West, scale 1 inch = about 1/2 mile.
Creator:
Grout, Frank F. (Frank Fitch), 1880-1958 and Schwartz, George M. (George Melvin), 1892-1980