July 25, 2015: Muffy Davis leads a group of racers along the Parks Highway during stage six of the 2015 Alaska Challenge handcycle race.

July 25, 2015: Keith Winchell races along the Parks Highway during stage six of the 2015 Alaska Challenge handcycle race.

July 25, 2015: Ashli Molinero races along the Parks Highway during stage six of the 2015 Alaska Challenge handcycle race.