Chart of harbor at Duluth, Minn. and Superior, Wisconsin / prepared under the direction of Major W.L. Fisk, Corps of Engineers, U.S. Army, in 1902-1905.
Vollständiger Titel:Chart of harbor at Duluth, Minn. and Superior, Wisconsin / prepared under the direction of Major W.L. Fisk, Corps of Engineers, U.S. Army, in 1902-1905.
Jahr der Abbildung:1912 - 1914
Herausgeber:United States. War Dept. Corps of Engineers