Iron ores of Minnesota, their geology, discovery, development, qualities and origin, and comparison with those of other iron districts, Bulletin 6, Plate 1
Iron ores of Minnesota, their geology, discovery, development, qualities and origin, and comparison with those of other iron districts, Bulletin 6, Plate 1
Description
Map of northeastern Minnesota showing iron regions, scale 1 inch = about 4.5 miles.
Creator
Winchell, Horace V. (Horace Vaughn), 1865-1923, Winchell, N. H. (Newton Horace), 1839-1914
Winchell, Horace V. (Horace Vaughn), 1865-1923, Winchell, N. H. (Newton Horace), 1839-1914 (1891). Iron ores of Minnesota, their geology, discovery, development, qualities and origin, and comparison with those of other iron districts, Bulletin 6, Plate 1. Minnesota Geological Survey. https://reflections.mndigital.org/catalog/mgs:1065 (map)