Interlocking bricks at the mouth of the stoker-less boiler.
There are so many pipes i the factory–I wonder how many people knew where they all went, in the days these machines operated at capacity.
This is a 1956 furnace. It was used to forge wheels, casings, and parts for the axel shop.
This might have been part of the Pioneer Pellet Plant. It looks to be a ball mill, which pulverizes ore by spinning it with thousands of ball bearings.
A new loading shed to fill train cars.
Compressors and turbines over the Eagle River.
A line of huge machines wait to be used as parts under a long-disused belt drive.
Blending the explosive ingredients was dangerous. It is no wonder that the blending house had so many emergency slides.
Looking from the crane-motor catwalk into the Calumet. The arm shown here with the pulleys looped through it would have been lowered and the bucket conveyor in it would throw grain to waiting ships and boats bound for flour mills and foreign lands.