About Caswell Memorial State Park

Caswell Memorial SP is a small, wild refuge in the midst of the Great Central Valley. It's home to endangered animals, wildlife, nature trails, an Oak Forest, and protects one of the last oak-riparian woodlands. The Stanislaus River meanders through Caswell, with beaches and swimming near facilities.

Get directions through Google Maps

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.

EV Information

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Overnight Facilities

  • Family Campsites
  • Group Campsites
  • Hike or Bike Campsites
  • RV Access
Other Facilities

  • Parking
  • Restrooms / Showers
  • Restrooms
  • Drinking Water Available
  • Wheelchair Accessible
Boating

  • Boating
Day-Use Activities & Facilities

  • Picnic Areas
  • Exhibits and Programs
  • Fishing
  • Interpretive Exhibits
  • Beach Area
  • Swimming
  • Nature & Wildlife Viewing
  • Family Programs
Trail Use

  • Hiking Trails


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.

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.

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. Remember insect repellent if you are sensitive to mosquitoes. 

Facilities and Activities

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

Interpretive walks and talks for school, service and social groups are available by making prior arrangements with park staff. Check the events tab for current guided walks and events being offered. 

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 species.

Caswell Memorial State Park Bird List