8:00AM -5:00PM
Great Valley Grasslands State Park
This park unit is partially open. Please take the time to read the information contained on this webpage to find out what is open and closed, and what COVID-19 guidelines are in place. - (August 2, 2021)
What is open now?
- Parking and Day-Use areas.
- Trails and River Access.
- Special events and public gatherings.
COVID-19 Guidelines - (January 7, 2022)
Recreate Responsibly
Protect yourself, family, friends and your community by following these prevention measures:
Leave No Trace – Leave areas better than how you found them by staying on designated trails and packing out all trash. Do not disturb wildlife or plants.
Recreate Responsibly
Protect yourself, family, friends and your community by following these prevention measures:
- Know Before You Go – Prior to leaving home, check the status of the park unit you want to visit to find out what restrictions and guidelines are in place. Have a back-up plan in case your destination is crowded. Stay home if you are sick
- Plan Ahead – Some restrooms will be temporarily closed to keep up with cleaning schedules. Bring soap/hand sanitizer.
- Play It Safe – Find out what precautions you should take when exploring the outdoors, especially if this is your first time visiting the State Park System. Learn more at parks.ca.gov/SafetyTips.
- Be COVID-19 Safe – State Parks continues to meet guidance from local and state public officials as COVID-19 is still present and still deadly. Current state guidance requires that masks must be worn in all indoor public settings, such as museums and visitor centers, irrespective of vaccine status through February 15, 2022. Read the latest COVID-19 guidance at COVID19.ca.gov.
Phone Number
(209) 826-1197
Park Hours
Dogs Allowed?
Yes
E-Bike LocationsDriving Directions to Great Valley Grasslands SP
The park is located south of Stevinson, CA, 1 mile south of highway 140 on Highway 165.Online reservations are not available for this park.
No online brochures available for this park.
Upcoming Park Events
No events scheduled at this moment.
BOATING
Boating
Boat Ramps
Boating
Boat Ramps
TRAIL USE
Hiking Trails
Hiking Trails
DAY-USE ACTIVITIES & FACILITIES
Fishing
Fishing
OTHER FACILITIES & VISITOR INFORMATION
Parking
Parking
The park preserves one of few intact examples of native grasslands on the floor of the Central Valley. The park is part of the larger Grasslands Ecological Area (GEA) of federal, state and private lands all managed for wildlife values. The GEA represents the largest remaining contiguous block of wetlands in California. Several rare and endangered plant and animal species inhabit the park, including alkali sacaton, a native bunch grass, and the Delta button celery (Eryngium racemosum) a state listed endangered species found in the flood plain of the San Joaquin River. Biologists have also reported the California Tiger Salamander and endangered vernal pool fairy shrimp and tadpole shrimp. Springtime wildflower displays, fishing and wildlife watching attract visitors to this undeveloped park, which also encompasses the former Fremont Ford State Recreation Area.