Precambrian geology and geochronology of Minnesota, Bulletin 41, Plate 5
Description:
Interpretations of bedrock geology (distribution of rock at the land surface and beneath surface sediments) of the Granite Falls area, Minnesota, showing locations of dated samples, scale 1 inch = about 1/4 mile.
Creator:
Baadsgaard, Halfdan, Goldich, Samuel S., 1909-, Hoffman, J. H. (John H.), Krueger, Harold W., and Nier, Alfred O. (Alfred Otto), 1911-1994