About mountain biking in Los Alamos County

Los Alamos County, New Mexico has 45 named trails tagged for mountain biking, covering 108 miles, an average of 2.4 miles each. The longest is Canyon Rim Trail, at 14.9 miles. 5 run 5 miles or longer.

What the mountain biking trails in Los Alamos County are like

By length, 20 are under a mile, 20 run 1 to 5 miles, and 5 are 5 miles or longer. 4 are loops, ending where they start; the longest is North Bench Overlook, at 3.4 miles.

Of the 32 with a difficulty rating, 16 easy and 16 moderate. Of the 45 with measured elevation, Pajarito Canyon (280) climbs the most, about 1,604 ft, and 4 gain 1,000 ft or more.

All 45 mountain biking trails, longest first

Canyon Rim TrailHikeMTB14.9 mi Knife Edge TrailHikeMTB11.0 mi Ruin Mesa TrailHikeMTB9.8 mi Bayo Benches LoopMTB7.7 mi Rendija Crack LoopMTB7.1 mi Perimeter Trail (290)HikeMTB4.3 mi Kwage Mesa LoopMTB4.0 mi Quemazon Trail (287)HikeMTB3.7 mi Kwage Mesa TrailHikeMTB3.5 mi North Bench OverlookMTB3.4 mi Valle Trail (289)HikeMTB3.3 mi Old Road Middle Fork TrailMTB2.9 mi Pajarito Canyon (280)HikeMTB2.6 mi Los Alamos Canyon Trail (294)MTB2.6 mi AspenolaHikeMTB2.1 mi Upper Walnut TrailMTB2.1 mi Estante TrailHikeMTB2.0 mi Water Canyon Overlook TrailMTB1.8 mi Old Road South Fork TrailMTB1.7 mi Fireline TrailHikeMTB1.7 mi White Rock Canyon Rim Trail Upper SpurHikeMTB1.4 mi Lower AspenolaMTB1.3 mi Mesa TrailMTB1.3 mi Zipline TrailHikeMTB1.0 mi South Bayo Bench TrailHikeMTB1.0 mi Acid Canyon TrailHikeMTB0.9 mi Bayo Bench TrailHikeMTB0.9 mi Braking BadHikeMTB0.8 mi Old Road, North ForkHikeMTB0.7 mi Fast and LooseMTB0.7 mi Gonzales RoadHikeMTB0.7 mi Walnut Canyon RoadHikeMTB0.7 mi Old Road, Middle ForkHikeMTB0.7 mi Dogpatch trailMTB0.6 mi Bayo Canyon Access TrailHikeMTB0.5 mi Mother's MilkMTB0.4 mi Old Road, South ForkHikeMTB0.4 mi Bone CrusherMTB0.3 mi Red DogMTB0.3 mi Leaping LizardMTB0.2 mi Water Bar TrailHikeMTB0.2 mi Muy LocoMTB0.2 mi Downtown AspenolaMTB0.2 mi Bayo Canyon AccessHikeMTB0.1 mi Access Trail to Estante TrailHikeMTB0.1 mi

← All Los Alamos County trails

Trail geometry from OpenStreetMap contributors, licensed ODbL. Elevation from the USGS 3D Elevation Program. Compiled and published by Trailmonger · trail data last rebuilt September 24, 2026.