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, and 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
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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
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.
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.
Community-Operated Park
Sugarloaf Ridge State Park is operated by Sonoma Ecology Center and Team Sugarloaf. Learn more by visiting the Team Sugarloaf Page
THE ECOLOGY BLOG
Learn about the many activites and impacts throughout Sonoma Valley of our lead organization, Sonoma Ecology Center.
SEC Launches Tending the Land for Fire Resilience in Sonoma County
Sonoma Ecology Center, Pepperwood, and Occidental Arts and Ecology Center recently launched a new, free in-depth online resource for Sonoma County land stewards. While Sonoma County is full of experts […]
An Unforgettable Summer of Learning
It’s that time of year again: the end of Summer Science Camps for kids. For many, these camps are more than just a seasonal pastime—they’re a whirlwind of discovery, creativity, […]
Meet Marielle: Our Volunteer Photographer
This year, we warmly welcomed a local photographer, Marielle V Chua, to the Sonoma Ecology Center family. Marielle’s photographs intimately capture the natural beauty of Sonoma Valley that inspires our […]
Improving Soil Health Using Biochar Throughout the East Bay
Since 2022, Sonoma Ecology Center has worked with Earth Foundries as a consultant on numerous initiatives aimed at studying ways biochar can be used to improve soil health projects and provide other ecological benefits beyond Sonoma Valley.