Bikes Our bikes outside of the SFAAP power plant. Similar Images ...based on the tags: bikes, gravel... 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. A screened water wheel, presumably for rotating the dredge once it lowered its “foot” to pivot in place. Like a railgun pointed at the Rockies… the boom would direct tailings–junk rock–outside of the dredge pond. 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. Through a section of the tailings boom where mountain winds tore open the sheet metal around the conveyor, I poked my head out. The gold mine is now a gravel pit. The tailings boom is the first and last thing you see when approaching the mountaintop shipwreck. Although the floors are pretty warped, I can’t imagine one could do many tricks off of them. …a better view of the huge tailings boom stretching outside of the tailings pond.