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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 at times by redwoods and ferns. With 47 family sized campsites and 25 miles of hiking trails, it is the perfect place to spend time outdoors with your family!

Great News! The park is open for camping and hiking and recovering well from the Glass Fire!

Hiking:  Most trails are open and the flowers are in full bloom.  Goodspeed Trail, part of Brushy Peaks Trail, and all trails in the McCormick Addition remain closed due to the Glass fire. 

Park Day Use Hours: 6:00am-10:00pm

Camping:  We have 44 campsites open, both reservable and first-come, first-serve in our lovely creekside campground.  And our Glamping sites opened April 1st – reservations available and booking fast!  For first-come-first-served sites call at 10 am.  Call ahead, these sites fill fast! 

Social Distancing and Face Covering Information

Park visitors must comply with social distancing, hygiene, and face-covering requirements:

  • Stay at least 6 feet from others who are not part of your household.
  • Carry a face covering at all times. Coverings must be worn outdoors when you cannot stay 6 feet from others, such as when passing others on a trail.

  • Do not visit a park if you have any symptoms of Covid-19: fever, cough, sore throat, shortness of breath, unusual headaches, severe fatigue, chills, gastrointestinal symptoms, and lost sense of smell or taste.
  • Do not use group facilities.
  • Do not use drinking fountains. Bring your own water.
  • Pack out your litter to reduce the amount of trash parks staff and visitors may come into contact with. 
  • Cover coughs or sneezes with a tissue and pack out your tissue for disposal at home.


When parking, please observe social distancing protocols. If the park becomes too crowded, we may temporarily close access. Please come early or later in the day if you want to be sure of entry.


Events are back!  Please see our calendar below for our socially distanced, COVID safe events.   

Additional Information

For more information about Sonoma County’s shelter-in-place health order and other Covid-19 emergency resources, visit SoCoEmergency.org.


Creekside Nature Hike @ Sugarloaf Ridge State Park
Jun 12 @ 10:00 am – 11:30 am

Join us for a 1.4-mile nature hike along the Sonoma Creek. On the hike your leader will teach you about the plants, animals, and aquatic life of Sonoma Creek. The hike starts at the Visitors Center. No fee, but parking charges apply. 

The hike is limited to 12 participants. Sign up at Visitor Center or RSVP to alma@sonomaecologycenter.org 

Fin de semana en Sugarloaf @ Sugarloaf Ridge State Park
Jun 18 @ 5:00 pm – Jun 20 @ 12:00 pm

18-20 de junio, 25-27 de junio, 9-11 de julio, o 16-18 de julio.
¡Venga a disfrutar un fin de semana acampando en su parque! No es necesario tener experiencia acampando, ¡nosotros le enseñaremos! Este evento es gratuito y proveerá una oportunidad para familiarizarse con el equipo y fomentar las habilidades de acampar. Tendremos tiendas de campaña y extra equipo para los participantes que necesiten; los participantes serán responsables por sus comidas. El evento y estacionamiento son gratuitos pero por favor regístrese por adelantado, ya que el espacio es limitado a 5 familias de 6 miembros o 30 participantes. Seguiremos las medidas apropiadas en acuerdo con órdenes del Departamento de Salud Pública del Condado.
Si tiene preguntas o busca más información, por favor contacte a Alma: alma@sonomaecologycenter.org

Este evento es respaldado por Route to Parks, una beca de Parks California.

Weekend at Sugarloaf
June 18-20, June 25-27, July 9-11 or July 16-18
Come experience a night of camping at your park! This is a beginning-camper friendly-experience. If you’ve never camped, or if it’s been some years, this opportunity will familiarize you with equipment and strengthen your camping skills. Gear will be provided for those who need it; you bring the food! This is a free event planned around a primarily Spanish speaking audience of up to 30. Families from underrepresented groups are particularly welcome.
Email alma@sonomaecologycenter.org with your questions. We will observe applicable County Health orders.

Senderos Naturales is supported by Route to Parks, a grant of Parks California.

Yoga Hike @ Sugarloaf Ridge State Park
Jun 19 @ 9:30 am – 12:00 pm

Enjoy your yoga experience in the beautiful setting of our park! Susan Topf’s Yoga Hike balances a mix of easy hiking and gentle yoga postures, breath work and guided meditation, no mat necessary.
Please wear weather-appropriate clothing to feel comfortable being in a natural setting and bring water (as needed) and your mask.
Route varies on weather conditions and group interest that typically covers 2-3 miles of varied terrain.
Tickets are $30 and include parking if registered in advance online.
All levels and ages welcome. Meet at the Visitor’s Center unless otherwise noted in confirmation email prior to the hike. Limited to 12 participants.

Sonoma County Resident? Free with 2021 ParkRx from participating Sonoma County Medical Provider. Click here for ParkRx info.
Creekside Nature Hike @ Sugarloaf Ridge State Park
Jun 19 @ 10:00 am – 11:30 am

Join us for a 1.4-mile nature hike along the Sonoma Creek. On the hike your leader will teach you about the plants, animals, and aquatic life of Sonoma Creek. The hike starts at the Visitors Center. No fee, but parking charges apply. 

The hike is limited to 12 participants. Sign up at Visitor Center or RSVP to alma@sonomaecologycenter.org 

Reptiles in Sugarloaf @ Sugarloaf Ridge State Park
Jun 19 @ 10:00 am – 11:30 am

Come listen to amateur herpetologist Steve Nielsen give a presentation on snakes, followed by a light walk led by Citizen Scientists Rachel Freed and Galen. We’ll meet at the Robert Ferguson Observatory at 10 AM for the half-hour presentation and afterwards we’ll explore the surrounding areas for sightings. We recommend you bring water, sunblock, and a hat. We are limiting this event to 20 participants. Tickets are $10 for adults and free for minors. Parking fees apply.

Creek Camp at Sugarloaf Ridge State Park @ Sugarloaf Ridge State Park
Jun 21 @ 9:00 am – Jun 25 @ 3:00 pm

Join us for a week (or two!) of Creek camp exploration at Sugarloaf Ridge State Park. Traverse the headwaters of Sonoma Creek Watershed in this recreational and environmental education camp. Campers will spend the week as explorers, starting off the day with morning hikes on the park’s trails. As the day warms, we’ll stay close to water, exploring the creeks for insects and amphibians. Activities include investigating the properties of water, collecting and studying aquatic insects, learning about the wildlife and plants found in the park. Our camp days will also consist of plenty of games, hiking, and storytelling.


Creek Camp is run by Sonoma Ecology Center naturalist Jonny Ehlers. Jonny is a fourth-generation educator who began working with youth right out of high school in an after-school program in Sacramento. He later became an educator in West Sonoma County at a residential camp working with diverse populations and founded The Mycelium Project, an organization dedicated to helping kids and adults through hikes, and nature-based activities. 


*We look forward to joining together in person and engaging with youth once again, off-screen and in-nature. However, given the uncertainties of our public health guidelines, our camps will be continually evolving. We will abide but whatever our scientists and medical experts deem as safe for in-person meetings when the camps start this summer. At this time we are limiting the sign-ups for this camp to no more than 12 participants.

6/21 Creek Camp 8-12, 9-3pm

7/6  Creek Camp 8-12, 9-3pm 

7/19 Creek Camp 8-12, 9-3pm

7/26 Creek Camp 8-12, 9-3pm

Sugarloaf Trail Crew @ Sugarloaf Ridge State Park
Jun 24 @ 9:00 am – 1:00 pm

Help Sugarloaf with trail restoration work. Work includes bridge and step construction, installing signs, clearing, lifting, carrying and hiking. Bring gloves, hat, and water that you can carry hands-free (i.e. bring a backpack). Wear long pants, boots or sturdy shoes and sunscreen. Poison oak is present, so long sleeves are suggested. We have tools and trained crew leaders with tasks for all. Minors must be accompanied by a responsible adult. We will provide tools, and if allowed, lunch.

If you are a current State Parks volunteer, signup in Volgistics.

Otherwise, sign up here.

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Read the Sonoma Ecology Center 2020 Impact Report!

Our parent organization, Sonoma Ecology Center, is proud to present 30 years of milestones in the areas of COMMUNITY, LAND, CLIMATE, WATER, and BIODIVERSITY.



Sugarloaf’s PPPP (Personal Porta Potty Program)

 Each campsite has its own porta-potty which our dedicated campground Staff cleans between each set of campers.  “The feedback from campers has been overwhelmingly positive”, said campground manager Woody Woodbury. “They like the safety as well as the convenience of having a toilet near their site,” he continued.

read more


  • Some Cool Finds During City Nature Challenge
    City Nature Challenge is an international event that takes place on the same weekend each year to encourage scientists and citizen scientists to document on the iNaturalist app any and all species they see in nature. Team Sugarloaf has participated in it for the past several years. Last year the pandemic interrupted a continuous run, and managers of Sonoma Ecology Center— which manages Sugarloaf—gave careful consideration to participating this year. “This year we decided to go whole hog with it,” says Dr. Dan Levitis, Community Science Coordinator. And they were rewarded with several incredible finds. In a remote northern part of the north side of Mt. Hood, a dozen naturalists spread out in teams to observe parts of the McCormick Addition of Sugarloaf Ridge State Park that burned in the 2020 Glass Fire.  “It burned quite hot last fall,” Dan says. “We found a lot of damage, but a ton of biodiversity coming back, including plants we hadn’t seen in a long time; fire followers, and some things that were not previously documented in the park.”… Read more »
  • Honoring Earth, Honoring Volunteers
    Sonoma Ecology Center and our illustrious, dedicated volunteers help us honor Earth every day, and we’d like to thank them for helping us take care of little patches of our planet right here in Sonoma Valley. In partnership with One Tree Planted and Simply Solar, volunteers and our restoration crew helped clear out invasive broom plants on Sonoma Creek. Scotch and French brooms were introduced in the 1800s and grow well here, so much so that they choke out native plants. When they die they create fire fuel ladders that are highly flammable.  Over at Nathanson Creek another great crew led by Sonoma Ecology Center’s “Earthling” teen volunteer group cleaned up trash and learned about pollinators, plants and ways to protect our planet. Our trail restoration work at Sugarloaf Ridge State Park continues with volunteers repairing steps and bridges, clearing debris, installing signs and generally taking care of the park’s trails. Large portions of Sugarloaf burned in 2020’s Glass Fire, and other portions — some overlapping — burned in the 2017 Sonoma Complex Fires. With… Read more »
  • A message from NEST student, Alexandra Huerta
    As someone who has always admired the grandeur of the outdoors and has an ever-present curiosity for exploring, understanding and preserving our natural world, studying environmental science just made sense. As a Southern California native, my summer days as a youth were full of salty hair, sun kissed skin and bare feet whenever possible. My pursuit of higher education took me to Penn State, where I was surrounded by an entirely new population of research driven, hard-working classmates. My time at Penn State not only offered me a well-rounded education, but it also gave me the opportunity to experience beautiful changing seasons, meet people from completely new and different walks of life, and taught me the value and importance of a sense of community. After graduating from Penn State, I moved back to California, eventually finding my way up the coast to Sonoma Valley. Sonoma has so much to offer us, teeming with natural beauty that we are able to appreciate all thanks to efforts from local conservation groups, local agriculture that provides us with farm fresh food… Read more »
  • New Ecological Scientist Training Program
    A message from Dr. Dan Levitis, Community Science Coordinator Sonoma Ecology Center is committed to helping diverse scientists overcome the barriers our persistently unlevel world puts in their paths. This is what motivates our New Ecological Scientist Training (NEST). NEST is an ecological research course that is not designed to teach ecology, but to equip […] Read more »
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