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Sierra Azul Open Space Preserve

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27 mi 43 km of trail 2 Recommended Routes

Easy Trails 1 Trail Intermediate Trails 6 Trails Hard Trails 1 Trail

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Recommended Routes in Sierra Azul Open Space Preserve - 2

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Favorite Mount Umunhum Trail in a cloud rolling over the mountain.
Intermediate/Difficult

Mount Umunhum Loop

13.9 mi 22.4 km 2,408' Up 733.96 m Up 2,423' Down 738.53 m Down

Almaden…, CA
Favorite Mount Umunhum Trail in a cloud rolling over the mountain.
Intermediate/Difficult

Mt. Umunhum Out-and-Back

8.0 mi 12.8 km 1,178' Up 359.01 m Up 1,176' Down 358.55 m Down

Almaden…, CA

Trails in Sierra Azul Open Space Preserve - 6

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3.7 mi 6.0 km #1Mount Umunhum Trail
Intermediate
Almaden Valley, CA
Intermediate
Almaden Valley, CA
4.1 mi 6.6 km #2Priest Rock Trail
Difficult
Los Gatos, CA
Difficult
Los Gatos, CA 11 
5.0 mi 8.1 km #3Limekiln Trail
Intermediate/Difficult
Los Gatos, CA
Intermediate/Difficult
Los Gatos, CA 10 
1.9 mi 3.1 km #4Barlow Road
Intermediate/Difficult
Almaden Valley, CA
Intermediate/Difficult
Almaden Valley, CA
5.5 mi 8.9 km #5Kennedy Trail
Intermediate/Difficult
Los Gatos, CA
Intermediate/Difficult
Los Gatos, CA
6.5 mi 10.5 km #6Woods Trail
Difficult
Lexington Hills, CA
Difficult
Lexington Hills, CA

Photos of Sierra Azul Open Space Preserve - 19

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View from the lookout off Kennedy Trail looking over Priest Rock Trail.
Jan 1, 2017 near Lexingt…, CA
Looking down at the "Dogmeat" section
Feb 2, 2018 near Lexingt…, CA
Mount Umunhhum's Airforce Radar Tower was in use 1957-1980. This iconic structure is visible from many places in the South Bay Area.
Oct 4, 2017 near Lexingt…, CA
View of the valley
Jun 27, 2020 near Almaden…, CA
Silicon Valley and the Diablo Range as seen from the the Mount Umunhum summit.
Oct 4, 2017 near Lexingt…, CA
A view of the descent on the Kennedy Trail.
May 1, 2017 near Los Gatos, CA
Working up the Kennedy Trail.
May 1, 2017 near Cambria…, CA
Sierra Azul Open Space Preserve - Kennedy and Limekiln junction. with permission from Alexander Avtanski
Jun 27, 2016 near Lexingt…, CA