Sugarloaf Ridge State Park

Sugarloaf Ridge State Park Sugarloaf Ridge SP boasts some of the best views in the Bay Area and offers over 25 miles of trails. St. Helena, Snow Mountain, and The Sierras.
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Sugarloaf Ridge State Park Features:

The best views in the North Bay. From Bald Mountain’s 2,700 foot summit, you can see San Francisco, Napa Valley, Sonoma Valley, Mt. A lovely seasonal waterfall on Canyon trail.

25 miles of hiking trails. Everything from an easy 1-mile nature trail to a challenging 8.2-mile loop over Bald Mountain. Great mountain biking and horseback riding trails. Incredible

diversity of landscape: Cool redwood forests, flower-filled meadows, and bird-rich chaparral. The Robert Ferguson Observatory offers monthly “Star Parties” where the public can see the heavens through the observatory’s three large telescopes. (for info see www.rfo.org)

Family Campground with 47 sites. Now with hot showers! 2 wheelchair-accessible campsites with an accessible restroom, showers and campfire pits. Group Campground with room for 50. Interpretive visitor center open on weekends. Tranquil creek side picnic area. Managed by Sonoma Ecology Center and Team Sugarloaf: Five local non-profits working hard to keep your park open. Fees: $8.00 day-use, $49.00 annual pass and $35.00 camping. See you soon at the Headwaters to the North Bay and Gateway to the Stars! Team Sugarloaf is a partnership of five non-profit organizations dedicated to the natural resources of Sonoma Valley and to providing access to the natural haven of 3,900 acres provided by Sugarloaf Ridge State Park: Sonoma Ecology Center (lead partner overseeing general operations), Valley of the Moon Natural History Association, Sonoma Trails Council, United Camps Conferences and Retreats, and the Robert Ferguson Observatory.

Acompañanos en esta caminata familiar de dos millas con enfoque en serpientes y otros reptiles como parte de la celebrac...
08/30/2026

Acompañanos en esta caminata familiar de dos millas con enfoque en serpientes y otros reptiles como parte de la celebración del "Día de biodiversidad de California" (en inglés, California Biodiversity Day). Comenzaremos con una corta presentación dentro del aula del Robert Ferguson Observatory y después caminaremos los senderos Lower Bald Mountain y Creekside Nature Trail, los cuales son hábitats preferidos por estas especies.

Evento gratuito; requiere registración. Hay transportación disponible gratuita dentro de un radio de 20 millas al parque para familias que la necesiten. Para detalles y registración, visita https://sec.regfox.com/reptiles2026

Alternativamente, llama a Mario (707-387-4087), Alma (707-247-5767, entre martes y sábado) o escríbenos a [email protected]. ¿No puedes acompañarnos ese día? ¡Guarda la fecha el 3 de octubre para más aventuras!

Senderos Naturales es parcialmente respaldado por una beca de Parks California .

Fotografía cortesía de Edi Ramirez
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Join us on this 2 mile, family friendly hike focused on snakes and other reptiles to celebrate California Biodiversity Day. We will begin with a short presentation inside the Robert Ferguson Observatory, followed by a walk along the Lower Bald Mountain and Creekside Nature trails, the preferred habitat by these species.

This event is planned around a primarily Latino audience and will be conducted in Spanish. Families from underrepresented groups are welcome to join. Free transportation available within a 20 mile radius of the park for families in need. For questions, please email [email protected].

This event is partially supported by Route to Parks, a project of Parks California .

Photo by Edi Ramirez

[Traducido al español debajo] What's Shakin' at Sugarloaf this weekend? Explore the park after dark (bring a flashlight!...
08/26/2026

[Traducido al español debajo] What's Shakin' at Sugarloaf this weekend? Explore the park after dark (bring a flashlight!) and watch the full moon rise over the Mayacamas. We're offering two full moon hikes this week: Wednesday is a 4.2-mile moderate-to-strenuous, 800-foot elevation gain hike up the Vista Trail starting at 6 p.m., or take the 6.5-mile strenuous hike to the summit of Bald Mountain on Thursday, starting at 5:30 p.m. Both hikes require registration to attend.

On Saturday morning, learn the human history of Sugarloaf. On Sunday afternoon, take a Slow Geological Journey along one of our accessible trails.

Learn more and register at www.sugarloafpark.org/events

Photos by Eddie Ramirez, Kristen Russell, Alma Shaw, and Melania Mahoney

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¿Qué hay de nuevo en Sugarloaf? Explora el parque después de la puesta del sol (¡trae tu linterna!) y mira a la luna llena levantarse sobre las Mayacamas. Tendremos DOS caminatas a la luz de la luna esta semana. El miércoles, la caminata de nivel moderado a extenuante en Vista Trail es de 4.2 millas con una elevación de 800 pies. El jueves, la caminata a la cima de Bald Mountain (nivel extenuante) es de 5.5 millas y alrededor de 1,520 pies de elevación empieza a las 5:30 pm. Ambas actividades requieren registración.

El fin de semana será histórico; el sábado por la mañana, aprende acerca de la historia del parque desde principios de actividad humana en el área hasta hoy en día, mientras que la caminata el domingo por la tarde tomará un “Slow Journey (viaje lento)” enfocado en la geología del parque.

¿Quieres más información? Encuentra detalles y registración para estos y otros eventos en sugarloafpark.org/events

Fotos por Eddie Ramírez, Kristen Russell, Alma Shaw, y Melania Mahoney

You can also follow on Instagram to see more. Follow us both ways!
08/22/2026

You can also follow on Instagram to see more. Follow us both ways!

[Traducido al español en los comentarios] What's Shakin' at Sugarloaf this weekend?This Saturday, join Certified CA Natu...
08/13/2026

[Traducido al español en los comentarios] What's Shakin' at Sugarloaf this weekend?

This Saturday, join Certified CA Naturalist John Lynch and explore Sugarloaf’s trees and plant communities—with a special focus on Oaks and Redwoods!

Are you an astronomy enthusiast or simply curious about what lies beyond our planet? Visit the Robert Ferguson Observatory from 11:00am-2:00pm to view our closest star and learn about sunspots, prominences, flares and more. End the day with the Public Star Party from 9:00pm-12:00am and experience the wonder of the night sky through three of RFO’s massive telescopes.

For a Sunday slow-down, check out our Summer Soundscape Listening Walk where you can listen in greater detail to the summer evening soundscape.

Check out these events—and more—through our Calendar of Events at www.sugarloafpark.org/events

Photos by Kristen Russell, Robert Ferguson Observatory, and Eddie Ramirez

Want to get lost in the woods this weekend? Follow the Pony Gate Trail, and you just might end up at a 35 foot waterfall...
08/12/2026

Want to get lost in the woods this weekend? Follow the Pony Gate Trail, and you just might end up at a 35 foot waterfall!

If you'd like a little bit more structure to your adventure, check out one of our guided hikes:

🌲 Sugarloaf’s Trees—From the Oaks to the Redwoods
August 15, 9:00 am-12:00 pm

🎧 Summer Soundscape Walk
August 16, 6:00-9:00 pm

Sign up at www.sugarloafpark.org/events

Photo by Conor Hagen

Big thanks to Sonoma Valley Fire District and CAL FIRE Sonoma-Lake-Napa Unit for helping out with our annual fire drill ...
08/07/2026

Big thanks to Sonoma Valley Fire District and CAL FIRE Sonoma-Lake-Napa Unit for helping out with our annual fire drill on Thursday, August 6!

With over 191,000 visitors coming through the park every year, safety is a huge priority for Sonoma Ecology Center and Team Sugarloaf. We're grateful for the support of local fire agencies who aren't just responsive during emergencies—they're deeply embedded in our community year-round and always willing to share their knowledge with us.

Thursday's drill brought together three CAL FIRE personnel and three Sonoma Valley Fire District personnel onsite. Their expertise helped us make sure our plan is as thorough and tight as possible, and they offered a great many useful suggestions along the way. We're glad to say they were pleased with both the plan and its ex*****on.

Watch this space for a full rundown of this year's fire drill, and the various measures Sonoma Ecology Center staff and Sugarloaf Ridge State Park volunteers take year-round to keep the park safe for everyone.

Photos by Eddie Ramirez

Sometimes the best part of your hike is when you pause to take a deep breath, close your eyes, and just listen to the so...
08/06/2026

Sometimes the best part of your hike is when you pause to take a deep breath, close your eyes, and just listen to the sounds of nature.

Regulatory sensory experience aside, there's so much that the field of Soundscape Ecology can teach us about the health of an ecosystem. Soundscape Ecology studies the sounds of a landscape—birdsong, insect hum, wind through leaves, water over stone—as a window into habitat health. The mix and rhythm of these natural sounds can reveal how a habitat is faring, from species diversity to the effects of changing climate and human activity.

On August 16, Soundscape Ecologist and Sonoma Ecology Center's GIS Specialist, Jack Hines will lead listening exercises and a guided soundwalk, inviting participants to slow down and tune into the layered voices of the park's forests, grasslands, and creeks. If you haven't already, check out Jack's podcast Ear to the Wild (KRCB/NPR): https://www.npr.org/podcasts/1185845607/ear-to-the-wild

Sign up at https://sec.regfox.com/ausound26

Photos by Eddie Ramirez

[Traducido al español en los comentarios] What's Shakin' at Sugarloaf this weekend? This Saturday, get your history fix ...
08/06/2026

[Traducido al español en los comentarios] What's Shakin' at Sugarloaf this weekend?

This Saturday, get your history fix and hiking fix all in one go with "From Fiery Caldera to Hidden Gem", where we'll learn all about Sugarloaf's ecological and human history, starting with its volcanic beginnings 3-5 million years ago.

Get the most out of your day pass and stick around for Robert Ferguson Observatory's "Focus Night" from 8:30-10:30 pm. This Focus Night is intended to prepare you for a Perseids “peak” experience. You will learn about different kinds of showers, why most are best viewed after midnight, and how to optimize your viewing as the densest Perseid activity approaches over the following week!

Learn more and register at www.sugarloafpark.org/events

Photos by Marielle V Chua, Woody Woodbury, and on iNaturalist

Get in, we're running through our annual evacuation drill!Friendly reminder that the Visitor Center is closed today whil...
08/06/2026

Get in, we're running through our annual evacuation drill!

Friendly reminder that the Visitor Center is closed today while park staff and volunteers rehearse our emergency evacuation plan. Kenwood Fire Department personnel will be on site to help review the plan and offer support and recommendations—thank you Kenwood Firefighters!

THE PARK IS OPEN, and the Visitor Center will reopen after the drill is complete. If you are at the park today, don't be alarmed if you see fire department vehicles. These drills are critical in helping our team stay sharp and ready to activate in the event of a wildfire or other emergency, and are why we were able to safely evacuate staff, volunteers, visitors, and campers so quickly during the Ledson Fire last month.

(Traducido al español en la sección de comentarios) Heads up! On Thursday, August 6, Kenwood Fire Department will be at ...
08/05/2026

(Traducido al español en la sección de comentarios) Heads up! On Thursday, August 6, Kenwood Fire Department will be at Sugarloaf Ridge State Park to help us review and offer feedback on the annual ex*****on of our wildfire evacuation plan. On this day you can expect to see the Visitor Center closed, Kenwood Fire Department personnel and vehicles on site, and staff and volunteers driving and moving about the park as we rehearse putting signs up and speaking with visitors and campers. The drill will begin at 9:00 am and could last at least four hours, or longer. The park will remain open!

You can help our plan be successful by being extra cautious while out hiking, especially during red flag warnings and fire weather watches. To keep up with such notices, visit the National Weather Service Bay Area at weather.gov/mtr

Thank you for cooperation as we work to keep our team up to date on evacuation protocols, so that Sugarloaf Ridge State Park is safe for everyone! If you have any questions about the upcoming drill, don’t hesitate to leave us a comment or send us a message.

Photos by Lisa Rani

Address

2605 Adobe Canyon Road
Kenwood, CA
95452

Opening Hours

Monday 6am - 10pm
Tuesday 6am - 10pm
Wednesday 6am - 10pm
Thursday 6am - 10pm
Friday 6am - 10pm
Saturday 6am - 10pm
Sunday 6am - 10pm

Telephone

+17078335712

Website

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