Steve Schallenkamp: Charting the growth and popularity of trail running

Steve Schallenkamp: Charting the growth and popularity of trail running POSTED: 07/08/18, 7:09 PM EDT | UPDATED: 3 WEEKS, 4 DAYS AGO Sheryl Wheeler competes in the 2016 Escarpment Trail Run. Photo courtesy of David Walker One of the fastest growing segments of the running world is the growth in popularity of trail running and ultra trail running. From 2006-2016, the number of trail …