The orange bars were secured to the tunnel walls to support electric lines for the mine carts. Lower parts of the sand mines were allowed to flood. The water was perfectly still, and made for a mud so thick it could suck off your boots.
The Comm Room’s portals once supported many more conduits.
The main staircase of the old hospital had… problems.
A creek has cut through the middle of the mine property, washing away the loose rock and eroding the foundations of the Concentrator. It’s pretty, though! It’s be belief, though I cannot prove it, that some of the water here originates from inside the now-buried Santiago Tunnel, which is no doubt flooded to a great extent.
When the lake levels were especially low, the pilings of Dock 3 that are usually underwater were clearly visible between Dock 2 and Dock 4.
Taken from the arm of the pocket loader–note the tree growing out of the conveyor belt. Often where you see old piles of taconite, trees are springing up. The byproducts of the pelletization process break down and make a really fertile mix, especially with all the iron content!
Miller Creek, in one of the wider sections that features a trout (as in the fish) canal in the middle of the drain. Even though it is underground, the fish are able to visit their breeding ponds upstream by swimming through the specially designed tunnel.
Old conveyor belts are draped over the sides of the ore chutes to cut down on the noise and wear of the dumping trains.
An auxiliary crane in the corner of the foundry room.