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Best trails in Sierra Azul Open Space Preserve

2,700 Reviews
Looking for a great trail in Sierra Azul Open Space Preserve, California? AllTrails has 14 great hiking trails, trail running trails, mountain biking trails and more, with hand-curated trail maps and driving directions as well as detailed reviews and photos from hikers, campers, and nature lovers like you. Ready for some activity? There are 8 moderate trails in Sierra Azul Open Space Preserve ranging from 1.2 to 18.1 miles and from 675 to 3,464 feet above sea level. Start checking them out and you'll be out on the trail in no time!
Description

As described by the Midpeninsula Regional Open Space District: "Overlooking the town of Los Gatos and the south bay, Sierra Azul Open Space Preserve is the District's largest preserve, encompassing over 17,000 acres of mostly rugged and steep terrain. The environment of Sierra Azul is strikingly varied. One can visit serpentine grasslands, hard, rocky, and steep chaparral, dense stands of bay trees, or quiet, shaded oak woodland forests. For the more hardy explorers, there are deep ravines and riparian corridors, some containing seasonal or year-round water flow. Wildlife is abundant in Sierra Azul. The entire Preserve is prime mountain lion habitat and also provides homes for deer, bobcats, coyotes, and many other species of animals. Sierra Azul ("Blue Range") is a true wilderness area, yet surprisingly close to the urban areas of the South Bay, making it a popular destination." Hours: half an hour before sunrise to half an hour after sunset

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Map of trails in Sierra Azul Open Space Preserve
Park information
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Top trails (14)
#1 - Mount Umunhum
Sierra Azul Open Space Preserve
moderateYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarGray Star(1061)
Length: 7.7 mi • Est. 3 h 54 m
Note: The area surrounding the base of the radar tower at Mount Umunhum is temporarily closed. Visitors can access the East Summit through a temporary covered walkway. For more information, please seeShow more
#2 - Lexington Reservoir Trail
Sierra Azul Open Space Preserve
moderateYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarGray StarGray Star(571)
Length: 5 mi • Est. 2 h 50 m
This loop trail explores the west side of the Lexington Reservoir and is a great option for the entire family. This trail is multi-use, and can be steep in sections. Take the Limekiln trail to the juShow more
#3 - Mount El Sombroso via Kennedy Trail
Sierra Azul Open Space Preserve
hardYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarGray Star(234)
Length: 11.7 mi • Est. 6 h 34 m
Note: Dogs are not allowed on the last portion of the trail to the peak.Show more
#4 - Mount El Sombroso and Lime Kiln Trail
Sierra Azul Open Space Preserve
hardYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarGray Star(195)
Length: 11.7 mi • Est. 6 h 42 m
A more advanced version of the Lexington Reservoir Loop, this hike connects the county park to the Sierra Azul open Space Preserve.Show more
#5 - Guadalupe Creek Overlook
Sierra Azul Open Space Preserve
moderateYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarGray Star(121)
Length: 2.8 mi • Est. 1 h 22 m
Guadalupe Creek Overlook is a 2.8 mile heavily trafficked out and back trail located near New Almaden, California that offers scenic views and is rated as moderate. The trail is primarily used for hikShow more
#6 - Mt. El Sombroso via Woods Trail
Sierra Azul Open Space Preserve
moderateYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarGray Star(72)
Length: 11.6 mi • Est. 6 h 5 m
Mt. El Sombroso via Woods Trail is a 11.6 mile moderately trafficked out and back trail located near New Almaden, California that features beautiful wild flowers and is rated as moderate. The trail ofShow more
#7 - Limekiln Trail
Sierra Azul Open Space Preserve
moderateYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarGray Star(105)
Length: 9.8 mi • Est. 5 h 47 m
The Limekiln Trail follows the Limekiln Creek. This pleasant out and back trail offers a great trail to get a taste of the Lexington Reservoir County Park. Bring lots of water, it can be hot and exposShow more
#8 - Woods Trail and Barlow Road Loop
Sierra Azul Open Space Preserve
hardYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarGray Star(43)
Length: 6.9 mi • Est. 3 h 47 m
Woods Trail and Barlow Road Loop is a 6.9 mile moderately trafficked loop trail located near New Almaden, California that features beautiful wild flowers. The trail is rated as difficult and primarilyShow more
#9 - Priest Rock, Limekiln and Kennedy Trail Loop
Sierra Azul Open Space Preserve
hardYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarGray Star(106)
Length: 13.6 mi • Est. 7 h 51 m
Priest Rock, Limekiln and Kennedy Trail Loop is a 13.6 mile moderately trafficked loop trail located near Los Gatos, California that offers the chance to see wildlife and is rated as difficult. The trShow more
#10 - Priest Rock Trail
Sierra Azul Open Space Preserve
hardYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarGray Star(96)
Length: 7.4 mi • Est. 4 h 23 m
Priest Rock Trail is a 7.4 mile out and back trail located near Los Gatos, California that features beautiful wild flowers and is rated as difficult. The trail is primarily used for hiking, running, nShow more
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