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.

Phone Number

(209) 826-1197

Park Hours

8:00AM -5:00PM

Dogs Allowed?

Yes

Driving 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
TRAIL USE
Hiking Trails
DAY-USE ACTIVITIES & FACILITIES
Fishing
OTHER FACILITIES & VISITOR INFORMATION
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.