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.
The U.S. Department of Interior Bureau of Mines presented a Certificate of Mine Rescue Training to Charles H. Isaacson in June 1914. It certified that Charles H. Isaacson of Virginia, Minnesota had been trained in the use of mine rescue apparatus at the Government Mine Rescue Station at Car No. 8 Virginia during which training he performed hard labor within a gallery filled with noxious and irrespirable gases and gave evidence of being qualified to use such apparatus within mines.
The U.S. Department of Interior, Bureau of Mines presented a Certificate of Award in Safety for disabling accident-free operation on July 1968. The certificate denotes the awarding of the Sentinel of Safety statue for display at the mine or mine offices.
View of Oliver Iron Mining Company Canisteo District mining activity near Trout lake at Coleraine. OIM's original experimental washing plant to right of center.
Contributing Institution:
University of Minnesota Duluth, Kathryn A. Martin Library, Northeast Minnesota Historical Collections
An electric locomotive pulling a train of dump cars. The mine tipple is in the distance. Note the overhead wire is set off to the side of the track, rather than above, to allow for clearance for the tipple.
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
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
View of the D.M. & I.R. Ore Dock 6 in the Duluth Harbor. Moored at the dock are "D.M. Clemson" and an unidentified ore boat. Each ore boat has a bumboat beside it (a bumboat is a floating supply store). The Clemson is being loaded. Also in the photograph is Steam Locomotive 205.
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.
Central corridor, depicting a barn and houses to right (thought to be numbers 143, 141, 139, 137) and to left (thought to be numbers 144, 142, 140, 138, 136).
A view of an iron mine in Virginia, Minnesota. The view looks down a deep trench. Mining equipment stand to the left, and houses can be seen in the distance to the left.
A view from the D.M. & I.R. Duluth Dock 6 looking down the stacker tracks to the pellet stacker in operation. Shows the stacker and trailing conveyor between two piles of taconite pellets. The Lift Bridge is in the background.