Alien Run Mountain Bike Trail

Alien Run Mountain Bike Trail is a three-loop trail system managed by the Bureau of Land Management's Farmington Field Office, located 2.9 miles northeast of the NM 173/550 junction near Aztec in San Juan County, northwest New Mexico. The system offers 16 miles of single track across the southwestern Colorado Plateau, featuring slickrock sections, escarpment vistas, and playful flowing trail with elevation gain of 1,250+ feet. The short and long loops are intermediate difficulty; the Outer Limits is more technical. No fees; vault toilet, parking, and picnic facilities available. Nearest water and services in Aztec, 8 miles away.