In summer, Pajarito hosts numerous special events, many involving mountain biking.

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.

Tsirege is a prominent archaeological site located on property owned by Los Alamos National Laboratory.

Pajarito Mountain first opened on 23 November 1957 with no toilets, no water, no grooming, no modern lifts and a few short slopes.

An additional 400 acres (1.6 km2) of land was purchased in the late 1960s and the first chairlift installed on the Spruce run for the 1969–1970 season.