Ready to Run Up a Mountain for 50 Miles? You Might Be a Skyrunner
A cadre of hard-core endurance athletes is embracing sky running. The discipline combines elements of trail running and mountaineering. It focuses on how high you can run instead of how far, over extremely technical mountain terrain at an altitude above roughly 6,500 feet.
Read More Ready to Run Up a Mountain for 50 Miles? You Might Be a Skyrunner