Mill Tram 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. Related Similar Images ...based on the tags: brown, holes-of-death, infinity, pipes, rusty, tanks, tracks, tunnels... One of the early automated painting booths in the paint plant line. One of the covered rail loading docks. All of them were overgrown and rust-clad. Unloading boats had the option to take on fuel at Taconite Harbor. This building, among other things, pumped fuel to the dock. This giant gear’s sole purpose was to turn the ship’s single rudder in all conditions. Much of the circa-1950s buildings remain with few alterations, such as these long boring sheet metal ruststicks. A closeup inside the mill’s power room. I wonder how sheltered workers on this mid-level catwalk that follows the ore chutes is in storms. Note the chunks of concrete stuck in the catwalk grates–the pockets (right) are falling apart. This mean-looking thing had a purpose, probably, but that function has been lost to decades of expansion. The conveyor between the shore and Dock 2. Note the gap in the aerial walkway that used to connect Dock 4 to the rest of the complex.