Fans Beside the shaft building are two fans on skids, indicating they were used underground. Similar Images ...based on the tags: arrows, fans, grates, left-behind, numbers, rusty, trees, windows... The machine shop today. Mammoth Mine overlooks Central City from atop Mammoth Hill. In the distance you can make out Coeur d’Alene Mine (red), which operated from 1885 through 1940. Looking at the last wall of the hotel from the banks of the river. In case power was lost, this manual signal could direct trains on and off the taconite trestle. Turning the pole would change the color of the light on top and the shape of the metal flags. A patient room is more intact than others. Looking from one workhouse at another, with the other residents of Mill Hell falling into place as the distance grows. Across the rail yard you can see Froedert Malt elevator and Calumet. Because Oshkosh is close to Green Bay, the Packers are very popular there. Everywhere in the plant there were traces of ‘Cheese Head’ culture. Paperwork litters the floors of the zinc mine offices.