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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!

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.


Hiking for Fitness: Maintenance Hike @ Sugarloaf Ridge State Park
Jan 22 @ 9:00 am – 1:00 pm
Join our Hiking for Fitness “graduates” on this free, Intermediate Fitness Hike.
For a complete schedule–including routes, mileage and elevation gain–visit the Hiking for Fitness page and click on the “Maintenance Hikes – 2022” tab.

Be prepared to follow County Health guidelines such as physical distancing or mask wearing.


Yoga Hike @ Sugarloaf Ridge State Park
Jan 22 @ 10:00 am – 12:30 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).
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 outside the Visitor’s Center unless otherwise noted in confirmation email prior to the hike. Limited to 12 participants.

Be prepared to follow County Health Orders such as physical distancing or mask-wearing.

Sonoma County Resident? Free with a September 2021 or newer ParkRx from participating Sonoma County Medical Provider. Click here for ParkRx info.
Mushroom Hike @ Sugarloaf Ridge State Park
Jan 23 @ 10:00 am – 12:00 pm

Enjoy some fungi fun with local expert, George Riner. Fungi are masters of opportunity. Even after a fire, the spores are in the air and find an environment where the local fungal species – i.e. competition – have been greatly reduced. These may show themselves in ways you may not imagine.

Be prepared for two miles of leisurely walking and chatting over moderate and possibly muddy terrain. Tickets are $10 for adults and $5 for minors. Meet outside the Visitor Center ten minutes prior to the event start time. Please wear appropriate clothing and bring a reusable drink container so your little ones can enjoy hot cocoa after the walk. Heavy rains cancel; parking fees apply.

Sugarloaf Trail Crew @ Sugarloaf Ridge State Park
Jan 27 @ 9:00 am – 12:00 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 Sugarloaf volunteer,  log in to Better Impact to sign up. Otherwise, start here to become a volunteer.

Winter Treasures: Salamanders, Lichen, Mosses, and A Waterfall @ Sugarloaf Ridge State Park
Jan 29 @ 10:00 am – 12:00 pm

Winter is newt breeding season! Join us as we walk through the sublime beauty of sage green lichen on burgundy Manzanita bark and moss bedecked oaks down to the 25-foot dramatic plunge of Sonoma Creek. Beginning at the Visitor Center, we’ll follow Pony Gate Trail’s grassy slope, into mixed evergreen forest, along Canyon Trail’s shady riparian corridor (with the promise of Pacific Giant Salamanders) to the waterfall. The return takes us back uphill, across Adobe Canyon Road to the now familiar Pony Gate trail.
This stroll is approximately 2 miles with 450-foot elevation gain. Tickets are $10 for general admission, or $5 for Sugarloaf members, volunteers, seniors, students, and minors. Heavy rain or wind cancels and will be announced the day of the hike. Parking fees apply. Be prepared to follow County Health guidelines such as physical distancing or mask wearing.

Senderos: Excursiones (Beginner Hiking for Fitness Series en español) @ Sugarloaf Ridge State Park
Feb 5 @ 9:00 am – 1:00 pm

Our popular Beginning Hiking for Fitness Series en español.

Empezando en febrero, nuestro programa de excursiones para fomentar la aptitud física será ofrecida en español. Los guías le guiarán en una series de ocho caminatas semanales para excursionistas principiantes. Cada excursión aumentará en dificultad o duración.

Las excursiones seguirán la mismas rutas que el programa en inglés:

  1. 5 de febrero: nos reuniremos en el granero blanco y caminaremos a Urano. 2.2 millas, 80 pies de elevación.
  2. 12 de febrero: circuito Meadow- Hillside, empezando en el granero blanco y terminando en el campamento. 3 millas, 250 pies de elevación.
  3. 19 de febrero: caminaremos el circuito del Lago Ralphine en el Parque Regional Spring Lake. El punto de reunión es el estacionamiento donde empieza el sendero Cobblestone (6024 Channel Dr, Santa Rosa, CA, 95409) 4.3 millas, 250 pies de elevación.
  4. 26 de febrero: circuito Stern/ Pony Gate/ Canyon. 3 millas, 500 pies de elevación. Reunirse en el estacionamiento principal.
  5. 5 de marzo: circuito May’s Clearing en el Parque Histórico Estatal Jack London. 3.7 millas, 430 pies de elevación. Reunirse en el estacionamiento superieror en 2400 London Ranch Rd, Glen Ellen, CA, 95442.
  6. 12 de marzo: circuito de los senderos Lower Bald/ Vista/ Meadow. 3.6 millas, 700 pies de elevación. Reunirse afuera del granero blanco.
  7. 19 de marzo: mesa de picnic en el planeta Neptuno. 4.3 millas, 640 pies de elevación. Reunirse afuera del granero blanco.
  8. 26 de marzo: circuito de los senderos Hillside y Vista. 4.7 millas, mil pies de elevación. Reunirse afuera del granero blanco.

Usualmente $80, esta series y el estacionamiento son gratuitos. A menos a que sea mencionado, todas las excursiones son los sábados, a las nueve de la mañana en el Parque Estatal Sugarloaf Ridge. Por favor regístrese aquí.
Por favor vista capas, calzado adecuado para senderos lodozos y resbaladizos, protección solar, traiga al menos un litro de agua, y si desea, un bocadillo. Las lluvias fuertes cancelan el evento pero continuaremos en llovizna. Seguiremos las medidas apropiadas en acuerdo con órdenes del Departamento de Salud Pública del Condado. Si tiene preguntas, necesita transportación (dentro del Valle de Sonoma), o busca más información, por favor comuníquese con Alma o Arsel por correo electrónico (senderos@sonomaecologycenter.org) o llame al (707) 833-5712.
¡Esperamos verl@s!

Este evento es respaldado por Route to Parks, un proyecto de Parks California.

La propuesta alianza de múltiples partícipes exclusiva a Parks California fortalece a comunidades mientras fomenta el amor y el cuidado de tierras públicas. La beca “Route to Parks” de $15,000 ayudará a que más gente tenga acceso a los recursos necesarios para vivir una vida sana fuera del programa Senderos Naturales. Parks California fué fundada como una organización asociada clave sin fines lucrativos asociada clave con el Departamento de Parques y Recreación del Estado de California para ayudar a fortalecer e inspirar a todos a presenciar estos lugares extraordinarios.

Signs of Spring @ Sugarloaf Ridge State Park
Feb 5 @ 10:00 am – 12:00 pm

Signs of Spring?  In early February?  Yes!  Join Certified California Naturalist Carolyn Greene on a couple of mostly level miles, being on the lookout for new growth in the forest, grasslands and chaparral – – life bursting forth after the welcome rains of winter.  Expect to spot emerging wildflowers, singing birds, shy amphibians, new oak leaves, colorful mushrooms and buds everywhere – all responding to longer and warmer days of late winter.

General admission is $10, students, seniors, Sugarloaf members and Sugarloaf volunteers $5, and under 18 are free. Meet at 10am in the White Barn parking lot; return by noon. Bring lunch to enjoy after the hike as we share nature tales and be prepared to follow County Health guidelines such as physical distancing or/and mask wearing. Heavy rains cancel; parking fees apply.

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Read the Sonoma Ecology Center 2021 Impact Report!


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


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


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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