Mill Door Beautiful doors separated the boiler room and the sugar mill. Can you imagine the gracefully curving steps in a power plant today? Similar Images ...based on the tags: archways, doors, leaves, peeling-paint, shadows, staircases... Wintertime is quiet, except for the planes overhead. 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 great entrance to the Service Building shows the detail once present in the old hospital. Pocket door and light switches in the upper control room, at the top of the spiral staircase. I like the fading stencil paint. The spiral staircase ends in the basement, where two oil tanks (for the lantern) and a freshwater tank (for the Keeper) were stored. The basement consists of two long arched vaults like this. Almost all of the doors and windows on the ground floor have been boarded, leaving the ground level very dark. Hanging over the crane cab, looking over at the trane-sized doors below. The steel beam tracing the left wall is the support for the gantry crane this photo was taken from. Looking across the catwalk behind the ore chutes, when they were up, and at the top of the ore chutes during loading.