Rancho San Antonio County Park and Open Space

This is a 165 acre County Park with mainly dirt trails a few of which are shared with equestrians and the rest are limited to hikers.  The park also has paved trails that are shared between hikers and cyclists.  There are about twenty three miles of trails.  At the north end of the park, there are restrooms and water fountains.  At the south end of the park, there is a water fountain.

Operating Hours

Sunrise to sunset.

Disabled Access

There are disabled designated parking spaces and paved trails.


Click for Map


22500 Cristo Rey Dr

Visit Google Maps for this Address


From Highway 85, north or south, take the Interstate 280 exit to San Francisco. From Interstate 280, north or south, take the Foothill Boulevard exit and proceed south on Foothill Boulevard approximately 0.2 miles to Cristo Rey Drive. Turn right on Cristo Rey Drive and proceed 0.9 miles to the park entrance.

Contact Info

Phone: 650-691-1200