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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
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1. Map showing iron ranges and ore carrying railroads of Minnesota

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...