The Original Tumblr This might have been part of the Pioneer Pellet Plant. It looks to be a ball mill, which pulverizes ore by spinning it with thousands of ball bearings. Related Similar Images ...based on the tags: flywheels, graffiti, mills, pillars, pipes, rusty... The huge snowfalls of 2011 brought new collapses across the buildings. Chutes connect the bottoms of the silos to a conveyor belt. Unloading boats had the option to take on fuel at Taconite Harbor. This building, among other things, pumped fuel to the dock. Looking toward the old power house, right below one of its arteries. Another. Planet. Coal crushers and the coke loading line. The Dock 5 sign at track level. Probably as an aid to sailors reboarding their vessels. Drawn in fresh concrete about 50 years before I took this picture, and only 2 years after this elevator blew up… See left. The offices, cleared out pending fire inspection. Now it’s full of stuff again.