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. Similar Images ...based on the tags: boilers, leaves, machinery, mossy, pipes, rusty, signs... I get dirty. A washout two thirds of the way down the tram gave me a place to relax in the thin air. Aaron by the concentrator. A closeup of the old fashioned wood-and-iron flour mill, a little while before they were all scrapped. The powered lime hopper had a lot of levels. S&X seen in the background through the fog. Spring melt flows down the rusty rock house. In the background is the frame for the shaft. Looking at the engine house (left) from atop the stoves. Looking up at the LEMP malting plant elevator. Look at that BRICKWORK!