Back Gate (Film) Scanned after being recovered from the bottom of an old wooden box for a few years. Circa 2005. Related Similar Images ...based on the tags: 120-film, black&white, fences, film, smokestacks, squares, trees... The rocket system used several cooling methods, once of which included an evaporation pond, pictured here. Looking to the chapel addition from the Chateau. The wood-braced structures descending the hill connected the La Crosse Tunnel to the mill in Central City. To see a picture of an aerial tram in action, see at my Treasure Mountain article. A look straight down into the chutes were taconite pellets would dump into the dock hoppers. Rebar was a safety measure to keep workers from being buried alive, were they to slip into the holes. This seemed to be the newest building on the property. Grain is taken from the bottom of the silos through a conveyor in a tunnel. These blowers keep the air in the tunnel fresh. The pipes above sprayed water onto the hot coke. A fireproof room in the basement, perhaps for ammunition storage at one time. Footprints of houses past; tailings of mines past.