Collector 4 Pipes to channel nitrose (think nitro glycerine) infused acid through the building. Related Similar Images ...based on the tags: black&white, bolts, chutes, numbers, pipes... Rogers Mine is one of the most structurally sound mines in the Iron River area that isn’t part of a museum. The old gate sign, leaned against one of the terminal elevators. A sign hanging near the shop office. Water at the bottom of the silo was perfectly clear. Work never done. Dust explosions were a real risk for grain mills. These funnels helped to filter the air in the mill. …a better view of the huge tailings boom stretching outside of the tailings pond. Miscellaneous math and strange instructions remain all across the shipment section walls. Sadly, this section likely fell into disrepair before the others. A gateway for St. Louis as seen through a gateway (of sorts) in East St. Louis.