Evaporator Blue plastic siding filters the summer sun, giving the otherwise reddish-brown interior a splash of color. Related Similar Images ...based on the tags: pipes, rusty, skylights, stained-glass... 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. The two exhaust vents coming out from the boilers en route to the stacks. Plywood marks where where catwalks were removed to extract equipment. To run new gutters through the building, some of the plaster walls of the Chateau had to be smashed through. These corner pilings served as bumpers… a little assurance against wind, ice, and new captains. The bottom of the stairs leading from the work floor to the cafeteria. Looking through the washer that is the first stop for the dredgings. The Barker turning around before it backed into Tac Harbor to unload coal for Minnesota Power. Workers’ lockers, strewn across Main Street, yet still out of the way. Filters and fans to draw air into the boilers in the second power plant.