It’s official. The Mt. Bachelor Downhill Bike Park is to open September 13, 2013. Upper Lava Flow to Rattlesnake and Blade Runner will be ready for top-to-bottom riding. For an easier, alternate route in avoidance of the black diamond Rattlesnake trail, riders can take Lava Flow to Cone Run, which connects to Blade Runner. For experts, the upper portion of Last Chance trail will be finished down to the 21...