Get access to everything we publish when you sign up for Outside+.
Northern Arizona Trail Runners Association, Flagstaff, AZ
Founded in fall 2001, NATRA’s mission is to promote trail running in Northern Arizona to folks of all abilities. They organize group runs at various trails on Saturday mornings whether there is rain, snow or shine! Dogs are always welcome, but by law, you must keep them on a leash. If you are new to running or a seasoned veteran, you’re welcome to join NATRA off road and discover the incredible forest trails of Northern Arizona. There is no fee to join the group.