Step 4 of 5 in a series of photographs depicting the process of testing an ore sample. In this step the crushed iron ore sample is dumped into the riffler to get a representative sample in the mine lab in step 4.
Step 5 of 5 in a series of photographs depicting the process of testing an ore sample. In this step a ring stand and crucible are used to determine the chemical analysis of the iron ore sample in the mine lab in step 5.
Step 3 of 5 in a series of photographs depicting the process of testing an ore sample. In this step the iron ore sample is ground through a 200-mesh screen in the mine lab in step 3.
Step 1 of 5 in a series of photographs depicting the process of testing an ore sample. In this step an ore sample is gathered from the ore train for testing in the mine lab in step 1.
Step 2 of 5 in a series of photographs depicting the process of testing an ore sample. In this step the ore sample is dumped into the crusher in the mine lab in step 2.
4 out of 8 photographs which depict the process involved in lowering a mule into an iron mine. In step 4 leather chaps or harnesses are placed on the mules sides and neck.
6 out of 8 photographs which depict the process involved in lowering a mule into an iron mine. In step 6 the mule's legs are securely tied to prevent injury to the mule in the headframe.
8 out of 8 photographs which depict the process involved in lowering a mule into an iron mine. In step 8 the mule in the headframe skip is now ready to lower tail first to the underground mine.
1 out of 8 photographs which depict the process involved in lowering a mule into an iron mine. In step 1 the mule is fed a heavy meal from a feedbox at the headframe to make it sedate.
2 out of 8 photographs which depict the process involved in lowering a mule into an iron mine. In step 2 tethers are attached to the mule's forelegs, not tied to a pole.
7 out of 8 photographs which depict the process involved in lowering a mule into an iron mine. In step 7 the trussed mule is slid onto a pallet, and is now ready to slide over to the nearby headframe.
5 out of 8 photographs which depict the process involved in lowering a mule into an iron mine. In step 5 chaps or harnesses are cinched securely and the mule is brought to the ground.
The Minnesota Iron Company, incorporated in 1890, was engaged in underground iron ore mining on the Vermilion Range that ran between Tower and Soudan on the west and Ely and Winton on the east of the range.
Contributing Institution:
University of Minnesota Duluth, Kathryn A. Martin Library, Northeast Minnesota Historical Collections
An unidentified underground mine pit with a steam locomotive Number 1 of the Duluth and Iron Range railway at work, probably at Tower or Ely, Minnesota, on the Vermilion Iron Range.
Contributing Institution:
University of Minnesota Duluth, Kathryn A. Martin Library, Northeast Minnesota Historical Collections
A panorama of the Alpena Mine in Virginia, Minnesota, shows the open pit mine in September of 1915 as it opened up the underground drifts. Both open pit and underground mining took place in the same time period.
Empty ore cars appear on the tracks of this view looking east from Mahoning Location. Track sections can be seen in the photo. A boring shaft appears on the horizon in the upper right.
Mining facility in winter. 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.
Iron miners posing before head frame, featuring lumber and tools. 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.
Mining location in winter, featuring facilities and bridge. 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.
Underground iron mine, featuring six iron miners beside wooden beams. 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.
Underground iron mine, featuring two ore cars, one filled with dirt. 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.
Underground iron mine, featuring ore cars filled with dirt. 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.
Underground iron mine, featuring five iron miners beside railroad tracks. 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.
Underground iron mine, featuring mine elevator with iron miners. 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.
Underground iron mine, featuring iron miners beside an ore car. 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.
Underground iron mine, featuring four iron miners beside two ore cars. 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.