Protected Areas in Santa Clara County
Protected Areas in Santa Clara County
Protected Area Guide
Santa Clara County is home to more than 20 protected areas, safeguarding a diverse collection of natural landscapes from the Santa Cruz Mountains to the Diablo Range. These preserves encompass a variety of terrains, including redwood forests, oak woodlands, rolling grasslands, and rugged, steep canyons. The extensive network of trails within these areas provides opportunities for a wide range of outdoor activities, primarily hiking, mountain biking, and jogging. This collection represents some of the best protected areas in Santa Claraβ¦
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4.7
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Last updated: April 23, 2026

4.7
(119)
3,833
hikers
Stevens Creek Shoreline Nature Study Area Open Space Preserve offers flat, accessible bayfront trails for hiking, jogging, and cycling through salt marshes and tidal flats.
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3,685
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Sierra Azul Open Space Preserve (Closed Areas) offers over 18,000 acres of rugged Santa Cruz Mountains terrain for hiking, biking, and jogging.
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4.7
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3,494
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Rancho San Antonio Open Space Preserve offers diverse terrain in the Santa Cruz Mountains with extensive trails for hiking, jogging, and cycling.
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4.8
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3,258
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El Sereno Open Space Preserve offers diverse terrain in the Santa Cruz Mountains, with wide fire roads and steep trails for hiking, cycling, and jogging.
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4.4
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3,230
hikers
Fremont Older Open Space Preserve offers 739 acres of rolling hills, woodlands, and grasslands with an extensive network of dirt trails for hiking, jogging, and mountain biking.
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4.8
(217)
3,144
hikers
El Sereno Open Space Preserve (Closed Areas) offers diverse landscapes and fire roads for hiking, jogging, road cycling, and mountain biking with panoramic views.
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4.7
(156)
3,135
hikers
Monte Bello Open Space Preserve offers diverse terrain in the Santa Cruz Mountains, with routes for hiking, jogging, road cycling, and mountain biking.
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4.5
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3,126
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Picchetti Ranch Open Space Preserve offers 3.7-4 miles of dirt trails through diverse landscapes for hiking and jogging, with views of Stevens Creek Reservoir.
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4.8
(199)
2,809
hikers
Felton Station Open Space Preserve (Closed) is a 44-acre parcel undergoing rehabilitation and is currently closed to the public.
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4.7
(129)
2,743
hikers
Sierra Azul Open Space Preserve offers over 19,000 acres of rugged terrain in the Santa Cruz Mountains for hiking, biking, and more. Its diverse landscapes provide varied outdoor pursuits.
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4.8
(196)
2,657
hikers
Bear Creek Redwoods Open Space Preserve offers diverse landscapes, from redwood forests to meadows, with routes for hiking, jogging, mountain biking, and road cycling.
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4.6
(119)
2,610
hikers
Monte Bello Open Space Preserve (Closed Area) offers diverse terrain for hiking, jogging, road cycling, and mountain biking in the Santa Cruz Mountains.
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4.7
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2,468
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Mount Chual Open Space Preserve (Closed Area) is a Santa Cruz Mountains preserve with restricted access, but its diverse surrounding areas offer varied terrain for hiking, jogging, and cycling.
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4.5
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2,420
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Sierra Vista Open Space Preserve offers diverse trails for hiking, cycling, and jogging through oak woodlands and grasslands, with expansive views of the Santa Clara Valley.
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2,410
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Saratoga Gap Open Space Preserve (Closed Areas) offers 1,600 acres of diverse landscapes, from forests to grasslands, with varied terrain for hiking, jogging, and cycling.
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4.8
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2,268
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Bear Creek Redwoods Open Space Preserve (Closed Area) features nearly 1,500 acres of redwood and Douglas fir forests with over 10 miles of trails for hiking and jogging.
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4.6
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2,248
hikers
Saratoga Gap Open Space Preserve offers diverse landscapes for hiking, cycling, and jogging through forests and grasslands in the Santa Cruz Mountains.
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4.8
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2,229
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Foothills Open Space Preserve offers 1,400 acres near Palo Alto with diverse landscapes and trails for hiking, jogging, and cycling. Enjoy views of the San Francisco Bay Area.
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4.8
(82)
2,181
hikers
St. Joseph'S Hill Open Space Preserve offers 270 acres of diverse terrain for hiking, jogging, and cycling, with trails leading to panoramic views of the Santa Clara Valley.
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4.7
(166)
2,011
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Ranch Canada Del Oro Open Space Preserve (Closed Areas) offers diverse landscapes for hiking, jogging, and mountain biking on a network of trails. Enjoy varied terrain with views of theβ¦
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Protected areas in Santa Clara County are lands managed by various agencies to conserve natural landscapes and wildlife habitats. These areas include open space preserves, county parks, and state parks, featuring terrains from redwood forests and oak woodlands to rolling grasslands and rugged canyons. This page aggregates information on approximately 29 such areas.
The primary activities in Santa Clara County's protected areas are hiking, cycling, and mountain biking. The region offers nearly 3,000 different routes for these sports. Many preserves also have trails suitable for jogging and horseback riding.
Notable protected areas include Rancho San Antonio Open Space Preserve in the Santa Cruz Mountains and Sierra Azul Open Space Preserve, which covers over 19,000 acres of rugged terrain. Other significant areas are Fremont Older Open Space Preserve with its extensive trail network and Bear Creek Redwoods Open Space Preserve, known for its mix of redwood forests and meadows.
Fremont Older Open Space Preserve contains an extensive network of dirt trails across its 739 acres of rolling hills and woodlands. The primary activities are hiking, jogging, and mountain biking. The preserve's trails offer varied levels of difficulty and provide views of the surrounding valley.
Sierra Azul Open Space Preserve features over 19,000 acres of rugged and steep terrain within the Santa Cruz Mountains. Its landscape consists of oak woodlands, grasslands, and chaparral. The high ridges provide expansive views, and the trail network is popular for challenging hiking and mountain biking.
Yes, there are thousands of miles of hiking trails across Santa Clara County's protected areas. Hiking is one of the most popular activities in the region. Preserves like Rancho San Antonio Open Space Preserve offer dozens of distinct hiking routes through varied terrain.
Mountain biking is a popular activity in many of Santa Clara County's protected areas. Preserves such as Fremont Older Open Space Preserve and El Sereno Open Space Preserve have extensive networks of dirt trails and fire roads suitable for mountain biking. The rugged terrain of Sierra Azul Open Space Preserve also offers challenging routes.
Yes, several protected areas offer trails suitable for families and beginners. For example, the Aquila Loop Trail in Sierra Vista Open Space Preserve is a gentler option with views of the valley. Coyote Valley Open Space Preserve features the 4-mile (6.4 km) Arrowhead Loop Trail through relatively flat grasslands.
Dog policies vary by park and managing agency, so it is important to check the rules for a specific preserve before visiting. For instance, dogs are permitted on-leash in some areas like Almaden Quicksilver County Park. However, many open space preserves managed by the Midpeninsula Regional Open Space District have restrictions to protect wildlife.
The protected areas are accessible year-round, but the experience varies with the seasons. Spring is a particularly popular time due to mild weather and wildflower displays in parks like Coyote Valley Open Space Preserve and Almaden Quicksilver County Park. Summers can be hot and dry, especially on exposed trails.
Yes, some protected areas have significant historical value. Almaden Quicksilver County Park is a California Historical Landmark, preserving the history of 19th-century mercury mining operations. Henry W. Coe State Park and others contain lands that were once home to Ohlone tribes.
The landscapes are diverse, ranging from the bayfront salt marshes of Stevens Creek Shoreline Nature Study Area Open Space Preserve to the towering redwood forests of Mount Madonna County Park. Many preserves feature a mix of oak woodlands, rolling grasslands, and chaparral-covered hills characteristic of the Diablo Range and Santa Cruz Mountains.

