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