Iron ores of Minnesota, their geology, discovery, development, qualities and origin, and comparison with those of other iron districts, Bulleitin 6, Plate 3
Iron ores of Minnesota, their geology, discovery, development, qualities and origin, and comparison with those of other iron districts, Bulleitin 6, Plate 3
Description
Map showing the Pioneer iron mine, surveyed July 13, 1889, scale 1 inch = about 6.25 feet.
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, Bulleitin 6, Plate 3. Minnesota Geological Survey. https://reflections.mndigital.org/catalog/mgs:1094 (map)