A group of miners standing in an unidentified open pit mine. The location of this photograph is unknown; but the Iron Range includes parts of the following Minnesota counties: Aitkin, Carlton, Cook, Itasca, Koochiching, Lake and St. Louis.
A group of miners standing in an unidentified open pit mine. The location of this photograph is unknown; but the Iron Range includes parts of the following Minnesota counties: Aitkin, Carlton, Cook, Itasca, Koochiching, Lake and St. Louis.
A group of miners standing in an unidentified open pit mine. The location of this photograph is unknown; but the Iron Range includes parts of the following Minnesota counties: Aitkin, Carlton, Cook, Itasca, Koochiching, Lake and St. Louis.
A group of miners standing in an unidentified open pit mine. The location of this photograph is unknown; but the Iron Range includes parts of the following Minnesota counties: Aitkin, Carlton, Cook, Itasca, Koochiching, Lake and St. Louis.
A group of miners standing in an unidentified open pit mine. The location of this photograph is unknown; but the Iron Range includes parts of the following Minnesota counties: Aitkin, Carlton, Cook, Itasca, Koochiching, Lake and St. Louis.
A group of miners standing in an unidentified open pit mine, with head frame in background. The location of this photograph is unknown; but the Iron Range includes parts of the following Minnesota counties: Aitkin, Carlton, Cook, Itasca, Koochiching, Lake and St. Louis.
A Joseph A. Holmes Safety Award Certificate was presented to Management and Employees of the Sherman Mine, Oliver Mining Division of U.S. Steel in April 1963 for working an open pit iron ore mine 1,245,634 man hours without a disabling injury from February 11, 1961, through December 31, 1962.
A Joseph A. Holmes Safety Award Certificate was presented to the Snyder Mine in April 1940 for accident free operation at the Virginia and Shenango open pit mines and the Webb open pit-underground combination mine for a year or more. In the 12 months ending December 1939, the Virginia mine completed 91,746 man hours without a lost-time accident; the Shenango completed 155,543 man hours; while the Webb went 15 1/3 months through August 1939 with 304,879 man hours without a lost-time accident.
Three men standing by a drilling rig. The location of this photograph is unknown; but the Iron Range includes parts of the following Minnesota counties: Aitkin, Carlton, Cook, Itasca, Koochiching, Lake and St. Louis.
View of a miners square set room. The location of this photograph is unknown; but the Iron Range includes parts of the following Minnesota counties: Aitkin, Carlton, Cook, Itasca, Koochiching, Lake and St. Louis.