Geology of the Cuyuna district, Minnesota: a progress report, Bulletin 36, Plate 6
Description:
Diagram showing correlation of subdivisions of Iron-Formations Cuyuna, Mesabi, and Gogebic Ranges, Minnesota, , vertical scale 1 inch = about 200 feet.
Creator:
Grout, Frank F. (Frank Fitch), 1880-1958 and Wolff, J.F., Sr.