Year-round day use
8:00am to sunset
Caswell Memorial State Park
COVID-19 Guidelines (February 16, 2022)
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. Effective March 1, 2022, state guidance recommends that all individuals, regardless of vaccine status, continue masking in indoor settings, such as museums and visitor centers. Universal masking remains required in specified high-risk settings. Please plan ahead as local county guidelines may differ from state guidance and visitors are urged to follow county guidelines when required. Read the latest COVID-19 guidance at COVID19.ca.gov.
- 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.
Caswell Memorial State Park is experiencing a phenomenon known as Summer Branch Drop. The term describes the failure of mature tree branches in summer, with no obvious cause. The failure of trees is inherently unpredictable.
Safety Notification/Summer Branch Drop (pdf)
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. 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.