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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:

  1. Trail closures/conditions
  2. Wildflower report
  3. Links to weather at the
  4. 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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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.

Team Sugarloaf Celebrates 12-Year Anniversary | El Equipo de Sugarloaf Celebra el 12º Aniversario

Since taking over operations of Sugarloaf Park in June 2012, Sonoma Ecology Center has developed and demonstrated a model for building a community-centered state park that welcomes all community members maintains a well-maintained and clean park, protects the environment, and builds additional knowledge of the park, all without any direct state funding. As California moves into another era of budget shortfalls, the state needs examples of how to keep its parks operating, welcoming, and maintained despite budget reductions. [Traducido al Español]

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Sonoma Ecology Center se une a organizaciones locales para ofrecer transportación gratuita a Sugarloaf Ridge State Park a través de la beca “Route to Parks” | SEC Partners with Local Organizations to Offer Free Transportation to Sugarloaf Ridge State Park through Routes to Parks Grant

Este año, estamos emocionados de anunciar que Sonoma Ecology Center es uno de los beneficiarios de la beca “Routes to Parks” de Parks California para el ciclo del 2024. Estamos usando esta beca para nuevamente unirnos con bibliotecas locales para ofrecer transportación gratuita a Sugarloaf Ridge State Park como parte de nuestro programa Senderos Naturales.

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New Accessible Ramp Installed at Sugarloaf’s Community Science Office

This Spring, we finished the installation of a new accessible ramp at the Community Science office at Sugarloaf Ridge State Park, which our Senderos Naturales staff and volunteers use for their work. We were able to complete this ramp installation using a grant from the National Environmental Education Foundation (NEEF).

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