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Organization Title

Caswell Memorial State Park

Park Information

Contact Information

(209) 599-3810

Trailer Lengths

Max Trailer Length: 21 Feet
Max Camper Length: 24 Feet

Park Hours

No Hours Listed

Driving Directions to Caswell Memorial SP

From 99, take the Austin Rd. exit. Head South on Austin Rd. and you will run into the park at the end of the road.

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Camping and Lodging

Online reservations are available 24 hours a day, seven days a week. Reservations can be made 7 months in advance on the first day of the month beginning at 8:00 a.m. PST via the website, by mail, or by calling the toll free telephone number at 1-800-444-7275. Due to seasonal volume, access to the ReserveAmerica website and the telephone line may at times be limited.

Online Reservations

Brochures and Campground Maps

Upcoming Park Events

No events scheduled at this moment.


Temporary Closure of Caswell Memorial State Park Overnight Camping Due to Safety Concerns


On August 28, 2014, California State Parks announced the temporary closure of overnight camping at Caswell Memorial State Park for public safety purposes due to recent incidents of tree branch failures that have resulted in property damages. Visitors are being notified via phone and email by the State Parks reservations system. Full refunds will be given, or visitors will be accommodated at other campgrounds. The closure is to remain in effect until further notice.

The day-use areas will remain open for Labor Day weekend, but the public is urged to use caution when seeking shade and should avoid sitting or parking under large branches, especially in hot weather.

Since June, several incidents have been reported of tree limbs falling in the Park. The incidents have resulted in property damage. No injuries have been reported. The number of incidents is higher than normal. State Parks is currently evaluating the situation for further review.

We apologize for any inconvenience.

Entrance of Caswell Memorial State Park
The park is located along the Stanislaus River near the town of Ripon, California. The park protects a fine example of the threatened and still declining riparian oak woodland, which once flourished throughout California's Central Valley. Caswell is home to several endangered animal species, including the riparian brush rabbit which is not known to occur anywhere else.

The Native Americans who lived along this river and collected acorns among these ancient groves were Yokuts. In the early 1800s, Spanish explorers traversed this area, and fur trappers found the river bountiful.

Thomas Caswell, landowner, enjoyed this wonderful forest and felt it should be preserved. In 1950 the children and grand children donated 134 acres to the people of California. Additional donations and state purchases brought Caswell to its current size of 258 acres. Caswell Memorial State Park was open to the public in 1958.

Location - Directions

From 99, take the Austin Rd. exit. Head South on Austin Rd. and you will run into the park at the end of the road.
Latitude/Longitude: 37.7005 / -121.1243

Seasons/Climate Recommended Clothing

Winter 45-50 degrees.
Summer 85-100 degrees.
It’s not unusual to go several consecutive days with 100+ temperatures June through September. Mosquitoes are among the resident wildlife so come prepared to live with them!!!

Facilities and Activities

Several species of fish including bass, catfish, crappie and more await your most enticing fishing technique.

Campfire programs, Junior ranger programs and nature walks are given every weekend throughout the summer. Interpretive walks and talks for school, service and social groups are available by making prior arrangements with park staff.

The Stanislaus River meanders through the park, with beaches and swimming areas near the park’s day use and campground facilities.

One of the most magnificent aspects the park has to offer is its seemingly endless nature trails. The trails allow a glimpse of what the riparian ecosystem of the valley would have looked like in pristine times. A majestic Oak Forest is surrounded by many other lush plant species, some of which are rarely found anywhere else in the area.

The park offers a rich variety of wildlife viewing. While many of the wildlife species here are nocturnal and rarely seen, bird watching is a favorite among nature lovers. Red shouldered and red tailed hawks are often seen, along with dozens of other winged artists.