Great Valley Grasslands State Park
- Status
- Open (per official listing)Daily 8 a.m. – 5 p.m.
- Entrance fee
- See fee details
- Day-use reservations
- None mentioned
- Dogs
- Statewide rule — see below
- Camping
- None listed
- Official site
- parks.ca.gov(209) 596-9032
Official page last checked Oct 29, 2026. How we keep this current
Overview
Great Valley Grasslands State Park is a 2,732-acre park in Merced County, about 9 miles east of Gustine.
Popular activities here are boating, fishing, and hiking. Water access includes a boat ramp.
Hours
Park, gate, office and facility hours are listed separately because they often differ. Alerts above override normal hours.
| Facility | Days | Hours | Season |
|---|---|---|---|
| Park | Daily | 8 a.m. – 5 p.m. | — |
Official wording
8:00AM -5:00PM
Source: official park page, checked Oct 29, 2026. Times are local to the park (America/Los Angeles).
Fees and passes
| Item | Amount |
|---|---|
| Vehicle Day Use | Free |
Official wording
Special rates may apply for peak season, high demand holiday periods, and during weekends. Prices are subject to change without notice. • Vehicle Day Use: Free
California park passes
- California Explorer Annual Pass — $195. Vehicle day-use entry to 134 state parks incl. high-demand Southern California beaches Details
- Golden Poppy Annual Pass — $125. Vehicle day-use entry to 112 state parks Details
- Historian Passport — $50. Admission for up to four people at per-person-fee State Historic Parks Details
- Off-Highway Vehicle (OHV) Annual Pass — $50. Entry to State Vehicular Recreation Areas that collect day-use fees Details
- SNO-Park Pass — $40 season / $15 day. 18 SNO-PARK winter recreation areas Details
From the California state guide. Confirm which passes this park accepts.
Reservations
- Day use
- No day-use reservation requirement mentioned
- Booking system
- ReserveCalifornia
- Phone
- (800) 444-7275
We link to the official booking system rather than showing live availability, which changes minute to minute.
Pets
See the park’s wording
Are dogs allowed?
Service animals are generally permitted where pets are not. Check with the park for specific areas.
Things to do
BoatingFishingHiking
Amenities
Facilities
- Parking
Water
- Boat ramp
✓ listed by the park · ✕ the park says it is not available. Anything not shown here isn’t mentioned by the official source — that means unknown, not unavailable.
Getting there
- Address
- 1 mile south of highway 140 on Highway 165
Stevinson, CA 95374 - Nearest town
- Gustine — about 9 mi east (straight line)
- Coordinates
- 37.2970, -120.8520
- Phone
- (209) 596-9032
Entrances
- Directions point
Google Maps directionsApple MapsOfficial park map (PDF)
Directions from the park
The park is located south of Stevinson, CA, 1 mile south of highway 140 on Highway 165.
Nearby state parks
Sources and freshness
- California State Parks — park page — last checked Oct 29, 2026
- California State Parks Listing page (one link per unit, page_id = officialId), unioned with the CSP Enterprise GIS 'ParkEntryPoints' ArcGIS layer (coords, address, county, unit number, management status) and the 'CSPParkUnit_CurrentStatus' layer (open/partial/full closure)
- Wikidata
- USGS PAD-US 4.1 (boundary and acreage)
“Last checked” is when our system last read the official source. No change has been detected since this page was first published. Hours, fees and rules can change without notice — confirm with the park before you go. Methodology