The individual ovens are skinny to allow even and fast heating of the whole interior. Numbers are cut into signs because no paint could withstand the heat or corrosive emissions from the coking process.
Powdered coal would sit in these hoppers before they get mixed with water to make a slurry. Then the mixture is injected into the firebox and ignited to make a coal-powered flamethrower capable of boiling water very quickly.
Some guerilla art for passing drivers on I-94 East to enjoy. Artist unknown.
I found a meth lab in this building once. (Yes, I called it in.)
In the steam plant, steam pipes bundled in canvas and asbestos criss-cross the walls.
The glow from the city is bright enough to read by.
After crushing, these machines would float lighter material to the surface of the water, where it would be skimmed and discarded. Gold and silver laden stone would sink to the bottom, where it was collected for the next stage of processing. Leica/Summilux 35/Ektar 100
Fantastic brick graffiti piece by a Duluthian in 1933! Is the stick drawing of a horse? Feel free to weigh in.
This part of the workhouse was sheathed in fiberglass, but now you can see its insides from a mile away.