Sierra Azul Open Space Preserve, Protected area in Santa Clara County, California.
Sierra Azul Open Space Preserve encompasses 19,300 acres of natural terrain, featuring wooded canyons, chaparral hills, meadows, and mountain peaks reaching 3,486 feet.
The preserve includes Mount Umunhum, which operated as Almaden Air Force Station from 1957 to 1980, serving as a radar installation during the Cold War period.
Mount Umunhum holds sacred significance for the Amah Mutsun people, with its name translating to 'resting place of the hummingbird' in their native language.
The preserve maintains 26 miles of multi-use trails connecting Lexington Reservoir to Hicks Road, with designated parking areas and restroom facilities at main entry points.
The upper watersheds of Los Gatos Creek and Guadalupe Creek originate within the preserve, flowing through the land before reaching their respective reservoirs.
Location: California
GPS coordinates: 37.16861,-121.26167
Latest update: March 10, 2025 23:27
Gilroy Gardens
37.3 km
San Luis Reservoir
19.6 km
Henry W. Coe State Park
25.2 km
Pacheco Pass
11.5 km
Anderson Lake
29.2 km
Delta–Mendota Canal
21.3 km
Pacheco State Park
15 km
Automated Planet Finder
38.6 km
Villa Mira Monte
35.2 km
C. Donald Shane Telescope
38.5 km
Katzman Automatic Imaging Telescope
38.4 km
Crossley telescope
38.8 km
Mount Sizer
22.9 km
Mount Stakes
21.5 km
Wings of History Museum
31.8 km
Old City Hall
32.6 km
Church of St. Joseph
38.5 km
Coudé Auxiliary Telescope
38.5 km
Hollister Carnegie Library
37.5 km
Carnegie telescope
38.6 km
21-Mile House
34.4 km
Bank of Los Banos Building
38.7 km
Lions Peak
35.2 km
Tauchmann telescope
38.7 km
Gilroy Free Library
32.8 km
Edgar Holloway House
32.6 km
Guadalupe River Park & Gardens
24.9 km
Copernicus Peak Lookout Tower
38.2 kmReviews
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