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Rancho San Antonio Rancho San Antonio

All Midpen Preserves are open to the public free of charge, 365 days a year from dawn until one-half hour after sunset.

Overview | Directions and Parking | Features | Regulations


The 3,988-acre Open Space Preserve, combined with the adjoining 165-acre County Park, offers visitors a unique experience with a sampling of diverse environments, interesting cultural history, and a variety of activities.


From I-280, north or south, take the Foothill Boulevard exit and proceed south on Foothill Boulevard approximately 0.2-mile to Cristo Rey Drive. Turn right on Cristo Rey Drive, continue for about 1 mile, veer right around the traffic circle, and turn left into the County Park entrance. There are several parking lots, including one designated for equestrian trailers. The trailhead for the preserve is located adjacent to the 85-car parking area in the northwest lot.

Download a map of Rancho San Antonio Open Space Preserve


Rancho San Antonio County Park is managed by the Open Space District as a result of an Operations and Management Agreement with the Santa Clara County Parks and Recreation Department. Rancho San Antonio County Park and Open Space Preserve provide formal and informal recreational opportunities. If you are planning a group visit, please contact the District at 650-691-1200 to obtain a permit. Permits are required for any group of 20 or more that is pre-advertised and is a requested or required fee-based activity.

Rancho San Antonio

Rancho County Park

At Rancho San Antonio County Park, the most popular activities are jogging and hiking. Stretching bars are available at the restroom parking area and equestrian staging area. The park provides hiking, bicycling, and equestrian trails, which connect with additional trails within the Open Space Preserve. Bicycles are restricted to designated trails only, and are not permitted west of Deer Hollow Farm. Similarly, equestrians are limited to the equestrian staging area and Coyote Trail, within the County Park.

The South Meadow area, located in the County Park and adjacent to the parking areas, provides opportunities for informal play on a "rough grass" area. The equestrian staging area, which includes a horse-watering troughis located adjacent to the South Meadow,. Non-gas powered model airplane enthusiasts use a staging area adjacent to the parking lots near the park entrance for take-offs and landings and fly their aircraft above the South Meadow area.
Download Model Airplane Rules.pdf

The North Meadow area, across Permanente Creek from the parking and staging areas, provides an informal irrigated meadow grass play area along with four tennis courts. The North Meadow includes a small number of picnic tables and barbecues. The picnic area is on a first-come, first-serve basis and the maximum group size for the area is 25 people.

Open Space Preserve

The preserve's extensive 23 miles of trails are available for exploration, whether one chooses to hike (dogs, however, are NOT permitted), bike, or horseback ride. Trails can be combined to form loops of different lengths and difficulties including the 3-mile Wildcat Loop Trail and the 4-mile Black Mountain Trail, To get to the northern part of the preserve from the valley floor, take the 2.1-mile Chamise Trail, which ascends gradually to a tranquil, secluded meadow in the Duveneck Windmill Pasture Area. This was once the location of a picturesque windmill from former ranch days when cattle freely roamed the hillsides. Visitors can now picnic amid fields of grass in the shadow of Monte Bello Ridge and Black Mountain. A major part of this area was a gift from Frank and Josephine Duveneck, and adjoins Hidden Villa Ranch, a non-profit environmental education facility.

A highlight of the preserve is Deer Hollow Farm, a working farm with a cow, pigs, goats, sheep, chickens, other animals, and an organic garden as well as numerous turn-of-the-century ranch buildings. An additional attraction is the restored Grant Cabin, furnished to represent living conditions in the late 1800s.


Below is a list of some basic regulations that will help to ensure a safe, enjoyable visit.

  • Hours: Preserves are open a half hour before sunrise until a half hour after sunset.
  • Bicyclists: Bikes are allowed on designated trails in this Preserve. Helmets are required at all times. Please observe the 15-mph trail speed limit (5-mph when passing or approaching blind turns). Download Bicycle Access Guidelinespdf
  • Equestrians: Horses are allowed on designated trails in this Preserve. Helmets are recommended for all equestrians. Riders under 18 years of age are required to wear a helmet on all District land. Download Equestrian Access Guidelinespdf
  • Groups: For safety reasons, permits are required for all groups of 20 or more people.

  • Fires: Fires are prohibited on preserves.

  • Smoking: Smoking is prohibited on preserves.

  • Weapons: Weapons of any kind are prohibited on preserves.

  • Plants and Animals: Please leave plants and animals undisturbed. This not only preserves the natural environment, but is also a safety precaution.

  • Water Areas: Swimming wading, or engaging in any water-contact activity in any water areas of the District is prohibited.
Download District Regulations and Ordinancespdf


Ideas for...



Mountain Bikers

People with Disabilities

Trail Conditions

The Hammond-Snyder Trail is currently OPEN to equestrian use.

The Quarry Trail which goes from the top of the PGE Trail to the Black Mountain Trail is OPEN to equestrian use.

IMPORTANT: Please be aware that seasonal trail closures may change from day to day without notice, based on changing weather conditions. Also note that during winter storm season high waters can make creek crossings hazardous, so plan your outing accordingly.

Last updated on: 5/7/2015

Additional Information

Deer Hollow Farm

Cultural History

Natural Diversity

Our Most Accessible Trails

Permit Information

Hidden Villa

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