The sign room with glass letters, words, and numbers.
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The control room for the whole of the plant. Sinterband here means one of the sintering lines. Temperatures, gasses, mixtures, speeds, and so on were centrally controlled here.
The UP gets a lot of snow, making exploring its old mines a special challenge in the winter. The snow is more than 6 feet deep in this picture, and firm enough to walk on.
From a distance (here, Union Yards), you can still see ARMOUR spelled out on the smokestack in white brick.
The largest extant structure when I visited.
An employee lunchroom with every door and window covered in vented steel.
I found a meth lab in this building once. (Yes, I called it in.)
Hand painted fire extinguisher notices and a long room which I strongly suspect was a pattern cutting room.
In the basement were all the valves to control the flow of municipal steam through the building. This hasty hand letting was beside one such valve, near a carved brick with a name and ‘1934’ under it.
Behind a nurse’s station.