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Welcome to Sugarloaf Ridge State Park

Hiking Galore

Enjoy over 25 miles of trails for every level of hiking ability

Stunning Beauty

Adventure and exploration the entire family will love

Headwaters to Sonoma Creek

Enjoy a stunning waterfall which flows 25 ft. high after winter rains!

Stay and Explore

We offer 47 family-sized campsites!

Welcome to Sugarloaf Ridge State Park

Sugarloaf Ridge State Park contains the headwaters of Sonoma Creek. It runs through gorge and canyon, across the meadow floor, beneath scenic rock outcroppings, and is surrounded by redwoods and ferns. With 47 family-sized campsites and 25 miles of hiking trails, it is the perfect place to spend time outdoors!


See the park Conditions Page for:

Trail closures/conditions, Wildflower report, Links to weather conditions at the park, Other park info as needed.

Camping:  We have 44 campsites open, both reservable in advance and first-come, first-served in our lovely creekside campground.

Calendar of Events

Support Sugarloaf

Your donations help keep Sugarloaf open for all!

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Read the Sonoma Ecology Center 2023 Impact Report!


Our parent organization, Sonoma Ecology Center, making great impacts in the areas of COMMUNITY, LAND, CLIMATE, WATER, and BIODIVERSITY in Sonoma Valley.

Camping at Sugarloaf

Camping at Sugarloaf

You can enjoy camping year-round at Sugarloaf with 47 family-friendly, alcohol-free camping spaces nestled in a large meadow and bordered by a year-round stream and a hillside forest.

Robert Ferguson Observatory

Stargazing at Robert Ferguson Observatory

Completely dedicated to public viewing and education, the Robert Ferguson Observatory is the LARGEST in the western United States and it’s right here at Sugarloaf Ridge State Park.

School Programs

Community-Operated Park

Sugarloaf Ridge State Park is operated by Sonoma Ecology Center and Team Sugarloaf. Learn more by visiting the Team Sugarloaf Page


Learn about the many activites and impacts throughout Sonoma Valley of our lead organization, Sonoma Ecology Center.

A New Way to Support Sonoma Ecology Center: 10% of your Sports Basement Purchases Supports Our Work, Plus Get 10% Off

We are excited to announce that Sonoma Ecology Center is now a beneficiary of Sports Basement, with store locations in Sonoma County, the Bay Area, and Southern California. When you shop at Sports Basement and select Sonoma Ecology Center as the beneficiary, you will receive 10% off your purchase and Sonoma Ecology Center will receive 10% of the profits to fund our work.

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