Tunnel Light The newer tunnels were fitted with these fluorescent lights, although some skylights (block glass embedded in skywalks) let in some natural light during the day. Similar Images ...based on the tags: archways, black&white, dark, lights, pipes, shadows, skylights, tunnels... The conveyorway between the on-site grain elevator and mill. This rockhouse was added below the shaft to load Gilpin Tram cars. Looking into the engine works from the concrete addition. The arches of the Twohy building, before some of the signs and sills were painted in 2015. Storms and waves, focused by the Port of Wisconsin entry have focused the faces to tear-up these boards below. A me-sized hole in the half-demolished skyway looks about a story down to the ground. Step lightly. Arista 100. The train loading tower (left), and elevators. Check out that giant flagpole/lightning rod. The bottom of the grain drier inside ADM-Delmar #1. A photo from the early 2000s before the conveyors were scrapped.