Short-stack remains of mounts for rod and ball mills, if I was to bet. The concentrator separated junk rock (tails) from the copper and silver ore, to such a point it could be smelted.
I found a historical photo of this room showing 10-foot high machines with wires hanging by the mile from looms and schematic charts.
One thing that made the Eagle Mine unique is the underground mill, left of this picture. As the rocks moved down the mill, they would be turned into finer and finer powder.
Modern ruins of the Gilman-Belden tram…
More than half a century of plans rot in the shadows, seemingly useless.
In some places in the mine shops, you can still make out narrow gauge track in the floors.
This seems to be the space where upholstery patterns would be drafted. On the table were half-finished notes on a new design.
Carvings on the back of a barracks building.
Whoever did this: good job. You get it.
From the slip where grain boats would tie for loading and unloading, the unloader juts in a modernist-architectural way that is oddly visibly satisfying. Inside that white building is the retracted boat unloader, more or less a long and sturdy conveyor attached to a joint and crane motor. There used to be four loaders that looked like simple tubes with cranes and ropes attached hanging from this side of the elevator. All that remains of those is one fixture on the white building (not visible here) and the frame of one on the elevator proper, visible in the upper-middle of this image, to the right of the unloader apparatus.
A wrecked pressure gauge and employee time cards.
Exploring Dock 4 was a very different experience, since it was almost all metal.
The pipes in the boiler would be full of water, so the heat in the furnace.
Someone’s abandoned to-do list.
Fantastic brick graffiti piece by a Duluthian in 1933! Is the stick drawing of a horse? Feel free to weigh in.
What are we to do in an emergency?
The steel sea leg is so heavy it requires a huge counterweight that travels the height of the elevator.
The old No Trespassing sign, with the Peavey logo still on it.
It’s pretty unusual to find a fireplace like this in the midst of a factory.
While the building looks uniform on the outside, inside it’s clearly divided between a hoist room and shaft room (seen here).
The side stairs were worn smooth by use.
Who is Jo Jew? Is it you?
A guard to keep sawdust from the water fountain.
Look at the floor–do you see the hole? That goes down a lonnnnnng ways.