Catenaries support the electric cable which powers ore cars (70-78). The cars were moved with a manned electric engine; no diesel or steam engines were used in this process. The Susquehanna was one of the first electrified mines on the Mesabi Iron Range.
The Hull-Rust-Mahoning mine established in 1892 in Hibbing is one of the largest open pit iron ore mines in the world, with a 1.5 by 3.5 mile footprint and depths up to 600 feet. It supplied as much as a fourth of all the ore mined in the U. S. during its peak production during WWI and WWII.
Contributing Institution:
University of Minnesota Duluth, Kathryn A. Martin Library, Northeast Minnesota Historical Collections