AIr Vent & Lamp House On the left you can see one of the later air shafts for the mine below, which allowed for natural air exchange with the main production areas of the coal mine. That is to say, there were no fans blowing fresh air down below. Similar Images ...based on the tags: green, mine-shafts, rooftops, towers, trees, vents... Many outdoor areas of the plant have become unofficial city dumps. The skeleton doesn’t care. A yellow house above the mineshaft. The lower portal of the Selby Tunnel, as it looks today. The area is a popular spot for homeless to camp–can you spot the tent? Like a railgun pointed at the Rockies… the boom would direct tailings–junk rock–outside of the dredge pond. Taken from the rooftop looking toward downtown, a hometown, a river town. Looking at the side of 4B from the roof of its car shed. The conveyor belt prevented cranes from accessing the left side of the dock, so cranes were mounted to the gantry crane to maintain the ore chutes on the side. Sawdust is the most classic of insulation materials. Much of the plant depended on steam, not only for heat but for mechanical power.