Cloverleaf Smelter Boilers The boiler doors are beautiful, and feature the name of the smelter and mine company. If you like these, check my article on the Mitchell Yards of Hibbing, MN. Related Similar Images ...based on the tags: boilers, leaves, machinery, mossy, pipes, rusty, signs... From the bottom of the skyway I looked back, my eyes tracing the vines from the marsh up the smokestacks to the perfect Midwestern sky. A side door for the shop area with ivy crawling toward it. Note the wood and rubber wheels on this powder cart. Rows of offices under the power plant, which was in the middle of being demolished during my adventure. Despite the snow, this was meant as an interior. The old movie theatre sign was sitting right inside the sealed front doors. At sunset the light skips from puddle to stagnant puddle across the whole foundry room, playing with the classic sawtooth roof with half-hearted shadows. Before each warhead was crated, it was inspected. Taken at a junction in the tube world. The note on the left announces that the spindles in the crates are dirty.