Shaft No. 1 Pulley From the catwalks below the hoisting motor in Shaft No. 1. Similar Images ...based on the tags: black&white, graffiti, headframes, pulleys, wheels... Part of the grain dust venting system, dislodged from its place above the dumping hatches under the grain cribs. Blast Furnace 7 as seen from the ore yard. Imagine running up those stairs through blast furnace smoke. Some guerilla art for passing drivers on I-94 East to enjoy. Artist unknown. Mill Hell before the University of Minnesota began developing the area. Now many of the buildings are gone, there are new roads and even bike paths. Police tape marks were kids got hurt in the past… probably from falling from the unstable catwalk above. Often the quickest way to move between buildings was to take the roof. The inside of the complex was so maze-like, I don’t know how I would have found my way around. A custom ladder to cross conveyor belts on the work floor. Near the guard post protecting the launch pad at the Duluth BOMARC is an orange windsock. The working end of the blast furnace, where molten metal would flow like lava out of the furnace… a process called ‘tapping’.