Rock Crusher These buildings were largely used as concentrators for the crushed rock, although I did spy some small mills inside these too. Related Similar Images ...based on the tags: boarded-windows, mountains, rusty, sheet-metal, signs, yellow... The front door to the auditorium. Silverton’s elevator, pictured here, is still active. The front of the school overlooks the town of Birtle, Manitoba. It replaced a circa-1894 building which was a little farther down the hill. One of the former sanitorium common rooms. Its interior is at the end of one of the wards and is lined with glass brick. The steel sea leg is so heavy it requires a huge counterweight that travels the height of the elevator. Looking at the top of the Washburn Crosby elevator from a mirrored window in the Guthrie Theater. One thing that made the Eagle Mine unique is the underground mill, left of this picture. As the rocks moved down the mill, they would be turned into finer and finer powder. The entrance to the area where staff could sleep. Inside the office was a small furnace and a collection of mechanical belts. You can see “SERVICE AT COST” and “POOL 168” in the background.