Thunderdumpers These dump cars moved copper ore to the top of the furnaces… it’s about two stories above ground level. Similar Images ...based on the tags: black&white, carts, ladders, tracks, triangles, windows... In the power house corner is this gratuitously gigantic doorway. It used to be even bigger, too, as indicated by the brick arch another foot over the top windows. The turbine hall sported a beautiful Whiting gantry crane. The interior of one of the curved corridors that connect two wards. Note the original floor’s hand-laid tile pattern. Portra 160. Labeling line elevator. At the top of a skyway that brought fresh-dried cotton into the Nitrating House from the Cotton Dry House. How? Monorail, of course. Between the catwalks of Furnace 6, the molted ore would flow through the chute. A machine to cast copper billets. Gulls check in on me while I climb around the roof of one of the train shds of SWP #4. FP-100C. The long control room overlooks giant caps where equipment was removed long ago.