Superior’s Light Taken just after the sun set over Duluth. Don’t you love that green glow? Related Similar Images ...based on the tags: breakwaters, clouds, concrete, flagpoles, ladders, lake-superior, lighthouses, staircases, stars, sunsets... This mean-looking thing had a purpose, probably, but that function has been lost to decades of expansion. Shoes and booze, backstage. Near the old slag dump there are the remains of the pouring buckets that received the molten steel from the US Steel blast furnaces, filled to the brim with pig iron. They must be incredibly heavy! Street lights and pavement are some of the obvious signs a town used to be here. Vents in the boards over the windows helps prevent mold and animals from getting too crazy inside. The Daisy Rolling Mill has been heavily altered since it was built in the 1890s. If there were no other options, operators could climb this ladder from the Communications Room to the surface, after opening two heavy steel hatches, of course. Above my head while taking this picture was the seal of the Department of the Interior. The Algosteel navigating Superior Entry.