In summer , Pajarito hosts numerous special events , many involving mountain biking . An extensive network of single and double track mountain bike trails criss-cross the mountain , including a new singletrack trail going to the summit . Pajarito hosts lift access downhill and freeride mountain biking off the Spruce chair , and has continued to do so after the Las Conchas Fire in 2011 . There also are hiking trails , and horse riding is permitted everywhere except on the mountain bike trails . Adjacent to Pajarito is a Los Alamos County campground , Camp May ; Santa Fe National Forest ; and Valles Caldera National Preserve
Las Conchas Fire
Las Conchas Fire
Pajarito Mountain Ski Area