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. Related Similar Images ...based on the tags: green, mine-shafts, rooftops, towers, trees, vents... With the maintenance door open you can see the buckets on in the vertical conveyor. Approaching the tunnel I heard about for so long… Reflections of graffiti during spring melt. Filters and fans to draw air into the boilers in the second power plant. I included this image to illustrate the height of the headgrame and the distance between it and the hoist house. Of course, compared with the depth of the mine shaft, this distance is short. The large domed rooms were surreal. Giant chunks of cooled slag form an island near Mud Lake. This belt-run axle ran a turbine (now gone) to blow fresh air into the mine. The old way to get to the elevator from the mill.