2015 Flagstaff Sky Race
The race served as the finale of the 2015 U.S. Skyrunner Series.
The race served as the finale of the 2015 U.S. Skyrunner Series.
The 50K and Vertical were part of the US Skyrunner Series and the 50K was the US Skyrunning Continental Championship
The U.S. Skyrunner Series will include 19 races in 2015.
High-altitude mountain running, also known as skyrunning, is one of the most challenging settings for a runner to compete in.
Photos from The Rut 50K, one of the hardest trail races in the U.S.
Check out Brian Metzler's author page.