You searched for: Author Hobs, Edwin Remove constraint Author: Hobs, Edwin Collection John R. Borchert Map Library Remove constraint Collection: John R. Borchert Map Library Year 1907 Remove constraint Year: 1907
1907. Hobs, Edwin and Oliver Iron Mining Company (Duluth, Minn.). Mining Engineering Department. Cartographic Details: Scale approximately 1:350,000 Inset shows generalized sections of Vermilion, Mesabi, Gogebic, Menominee, and Marquette Ranges...