Sierra Azul Open Space Preserve Trail

MODERATE 2 reviews

Sierra Azul Open Space Preserve Trail is a 21.6 mile moderately trafficked out and back trail located near San Jose, CA that features beautiful wild flowers and is rated as moderate. The trail offers a number of activity options and is accessible year-round. Dogs are also able to use this trail but must be kept on leash.

21.6 miles 4721 feet Out & Back

dogs on leash

kid friendly



mountain biking

nature trips

trail running


horseback riding



wild flowers

This is a great park with expansive trails that connect to the Almaden Quicksilver Park and the Lexington Reservoir Trails, including St. Joseph's Hill Open Space Preserve. The trails have great vistas and many parts are shaded. The Sierra Azul Open Space Preserve is the district's largest preserve, encompassing 18,831 acres. This park property is a bit of a jigsaw puzzle as the plots of land that were purchased are not contiguous, but the trails are long and it is possible to travel all the way to Lexington Reservoir. The park includes some of the great vista points in the south bay, including Mt. Umunhum (closed to the public), Bald Mountain (2,387 ft), Mount El Sombroso (2,999 ft). The trails are well groomed and marked and many parts are shaded.

2 years ago

Very peaceful. Lots of trees and great views across San Jose. No benches. A word of warning, in the small car park at the hicks road/mount Umunhum road, there have been lots of car break-ins. I was there in November and all but mine of the 6 cars had been broken in to.

3 years ago

This is a nice trail with lots of shaded areas and interesting geological variety!