Welcome to Joseph D. Grant County Park, the largest of Santa Clara County's regional park and recreation areas. This 10,882 acre park includes some of the County's finest open space resources, as well as rich environmental, cultural and recreational assets. The landscape is characteristic of the east foothills of the Santa Clara Valley with grasslands and majestic oak trees. As part of the park's tradition and history, cattle grazing currently takes place in some areas, and is monitored under a resource management plan. Enjoy your visit today, and return often to experience the many features of Joseph D. Grant County Park.
How to Get There
Joseph D. Grant County Park is located at:
18405 Mt Hamilton Rd San Jose, CA 95140
Park Office: (408) 274-6121
Joseph D. Grant County Park is located in the east of Santa Clara Valley.
Effective October 30th, 2023, the construction activities on Mt. Hamilton Road have concluded, and the road is now fully operational and open for public use. The Park is now accessible from San Jose via both Quimby Rd. and Alum Rock/Mt. Hamilton. Please take note that Quimby Road is very narrow and is not suitable for RV's and large trailers.
When all roads are open travel to the park by taking Highway 101 or Highway 680 to Alum Rock Avenue eastbound in San Jose. Turn right onto Mt. Hamilton Road and travel 8 miles to reach the park entrance.
Hikers and equestrians have access to an extensive 51 mile trail system. Mountain bikes are permitted on over 75% of the park's trails as designated. The diverse trail system at the park makes this a popular place to stage large-scale organized trail events such as equestrian endurance rides, mountain bike events and foot races. Dogs are also allowed on the trails, picnic areas, and campgrounds as long as they are on a 6 ft. leash.
Shaded picnic areas are available on a first-come first-served basis. Campers can choose from almost forty (40) reservable family campsites. Hot showers are available with paid campsite use. Group picnic and youth camping areas are available by reservation. One large lake and several smaller ponds are accessible for warm water fishing. Fires are permitted in designated fire rings only. Do not gather wood. Extinguish fires when unattended. When posted "NO FIRES", only camp stoves or gas grills are permitted. For further questions please call the park office: (408) 274-6121.
For a reliable mapping tool while in the park, and the ability to find your location offline, learn about Avenza Maps here and download before you go!
Lick Observatory offers concerts, lectures and telescope viewings monthly. Visit www.ucolick.org/summer or call 831-459-2159.
Online Historical Collections
Be sure to check our online historical collections to see photos, documents, and artifacts related to Joseph D. Grant County Park. You can also view artifacts from Martial Cottle County Park or Almaden Quicksilver County Park and can request images from us.
Hours and Fees
The park is open year-round from 8 a.m. until sunset. Vehicle entry fees are collected year-round. Fees are required for camping, and for use of group picnic areas. Fees are posted at the entrance kiosk.
Access fees information here: Park Fees
In compliance with the requirements of Title II of the Americans with Disabilities Act of 1990 ('ADA'),the Santa Clara County Parks and Recreation Department will not discriminate against qualified individuals with disabilities on the basis of disability in its programs, services, or activities. The Department will make reasonable modifications to policies and programs to ensure that people with disability have an equal opportunity to enjoy our programs, services, facilities, and activities. If you need assistance with an ADA request, please contact our ADA Coordinator.