Bikes Our bikes outside of the SFAAP power plant. Similar Images ...based on the tags: bikes, gravel... Like a railgun pointed at the Rockies… the boom would direct tailings–junk rock–outside of the dredge pond. A screened water wheel, presumably for rotating the dredge once it lowered its “foot” to pivot in place. Because of the dangers of storing the materials to make explosives as well as the explosives themselves, there were earthen bunkers all across the plant like this. The gold mine is now a gravel pit. Through a section of the tailings boom where mountain winds tore open the sheet metal around the conveyor, I poked my head out. With its fresh paint, Lake Superior Elevator “I” almost looks contemporary, but it far outdates its neighbors, It replaced a wooden elevator by the same name in 1919. This photo illustrates how vertical the complex is. Although the floors are pretty warped, I can’t imagine one could do many tricks off of them. The bottom of the tailings boom is rotten. In days when the dredge, floated, gangways connected it to shore, it seemed. You can see the size of the pontoons under the boat here.