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Two Copper Range  railroad work trains with mobile cranes work from existing wood trestle while constructing a new trestle of steel.  The Copper Country of Michigan's Upper Peninsula, Electronic reproduction of photograph.  The railroads of Houghton county, Michigan
Abstract/Description: Two Copper Range railroad work trains with mobile cranes work from existing wood trestle while constructing a new trestle of steel. The Copper Country of Michigan's Upper Peninsula
Subject(s): Transportation
Railroads
Houghton (Mich.)
Date Created: 1880 - 1939