Hopper Stopper 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. Similar Images ...based on the tags: funnels, lights, rusty, squares... Looking through perfectly clear water into an abandoned mine room. My guess is that it contained some pumps to keep the mine dry and equipment related to the elevators. Worm in the path of raw ore where it would be dumped from rock cars into the silo below. Much of the milling equipment predated the mill itself, so I would not be surprised if this particular machine really dates to 1860. These corner pilings served as bumpers… a little assurance against wind, ice, and new captains. Old hospital beds. Somewhere, Bruce Springsteen is playing while an exceedingly furry man tunes his Ford truck in the driveway of a house he built with his bare hands. This is for that person. A sheik mustard-yellow paint scheme across the roofless engine house goes great with the industrial moss and rust. A bunk room, minus the bunks. A staircase threads between the top floor and the sluices, which are in the middle of the dredge-mill.