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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.

SEC Launched New Capstone Overnight Camping Trips for 5th & 6th Graders

5th graders from Flowery Elementary School participating in the capstone overnight camping trip at Sugarloaf Ridge State Park this Spring.This Spring, Sonoma Ecology Center is thrilled to have launched our new overnight camping opportunity for our 5th grade and 6th grade students at Sugarloaf Ridge State Park. Every year, we provide environmental education for these […]

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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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Advancing Environmental Education with Free UC CalNat Course for Local Teachers

In our mission to bring high quality environmental education to all students in Sonoma Valley, Sonoma Ecology Center hosted a UC California Naturalist for Teachers (CalNat) course last Fall to support our Valley’s educators in their environmental education programs. Teachers are now sharing ways that they have been able to use the learnings from the course to improve their environmental instruction.

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