Summit for Life, a race in which participants climb 3,267 vertical feet over 2.5 miles to the top of Aspen Mountain, was held on Saturday evening. Proceeds benefit the Chris Klug Foundation, which raises awareness about lifesaving organ and tissue donations. (01) A long, snaking line of blue lights forms as the peloton of racers scrambles up the front side of Aspen Mountain. (02) Racers roar up the first of many pitches as they ascend Ajax during the Summit for Life event. (03) Skiers form a solid line of light heading up Spar Gulch