The landscape of our community has changed. Now is the time to harness our strength and spirit, together. We will be with you every step of the way, to rebuild a community that is more resilient, healthy and thriving.


How is our Valley doing? We monitor, analyze, map, and report on broad measures of ecological health in Sonoma Valley.


We provide educational and outdoor programs for thousands of students in Sonoma Valley.


We foster and maintain publicly accessible open spaces, including Sugarloaf Ridge State Park, Van Hoosear Wildflower Preserve and the Sonoma Overlook Trail.


Since 1993, we’ve worked side by side with landowners and volunteers on projects that restore, protect, and improve our natural heritage.

As 2018 began, Sonoma Valley faced a year of challenges — of rebuilding, rebirth and renewal. Now the year is drawing to a close, and we’re glad to take a moment and reflect on all that we’ve accomplished with the help of friends, neighbors, volunteers and donors. We’re also looking ahead to the challenges and opportunities of 2019 — including erosion, smarter and more resilient rebuilding and landscaping, and the future of SDC. With your support, we’ll get it done, and much more. Let’s move our community forward, together.

Fire Recovery Tips & Info /// Donate

Upcoming Events

Mushroom Hike @ Sugarloaf Ridge State Park
Dec 16 @ 10:00 am – 12:00 pm

Enjoy some fungi fun with local expert, George Riner. Fungi are masters at 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.

This hike is limited to 40 guests. Be prepared for 2 miles of walking over moderate terrain. Meet at the Visitor Center. $10 per person, parking fees apply.

Tickets: https://www.brownpapertickets.com/event/3627324

Nathanson Stewards Volunteer Clean-up @ Nathanson Creek Preserve Native Garden
Dec 22 @ 9:30 am – 12:30 pm

On the fourth Saturday of every month, the Nathanson Stewards meet at the corner of East MacArthur and Second Street East, put on their gloves, and have a fun and productive morning tending the native garden located there.

This event is guided by trained restoration technicians from Sonoma Ecology Center, with a focus on native gardening and landscaping. The subject matter will vary with the seasons, and our technicians will demonstrate proper techniques for caring for the different native plants located within the Nathanson garden. Volunteers are asked to bring sunscreen or a hat, bottled water, a sack lunch and work gloves, and to wear closed-toed shoes. All ages are welcome, but children must be accompanied by an adult.

We’ll meet at the Nathanson Creek Preserve Garden located on the corner of East MacArthur Street and Second Street East in Sonoma. Activities may include:

  • Weeding
  • Trash pick-up
  • Getting to know your neighbors
  • Learning about native plants
  • Sharing a sack lunch
  • Connecting with nature at your local park

For questions or to express interest, please email nathansonstewards@gmail.com or patrick@sonomaecologycenter.org.


Christmas Eve
Dec 24 all-day
Christmas Day
Dec 25 all-day
Sugarloaf Park Winter Break Day Camps @ Sugarloaf Ridge State Park
Dec 27 @ 9:00 am – 3:00 pm

Need some extra time to clean up after the big day? Or just get the kids out of the house over winter break? We’ve got you covered at Sugarloaf Ridge State Park with our upcoming Day Camp. Join the Sugarloaf Staff and SEC Education staff for a day of fun, learning, and outdoor activity. Based on our summer Creek Camp, we plan on having a nature hike and learning about the creatures of the park. And we will end the day with s’mores and hot chocolate around a campfire. The camp will be based out of the Visitors Center. Time: 9 a.m. to 3 p.m. Cost: $40, or $20 for Sugarloaf members or for a second child from the same family. For ages 7 to 12.

Visit our partner websites – Sugarloaf Ridge State Park, Sonoma Garden Park and Sustainable Sonoma

Sugarloaf Ridge State Park Sonoma Garden ParkSustainable Sonoma

Project Story Map

Click on the image below for an interactive map showing our projects in Sonoma Valley.

Sign the SDC Petition

Sonoma Developmental Center is preparing for final closure after 127 years of operation. Please sign the petition urging Gov. Jerry Brown to protect this large swath of crucial open space located in the heart of Sonoma Valley.

Read our 2018 Impact Report

Click on the image for a pdf version.


Smarter Landscaping

Click on the image below for a pdf version of our brochure on fire smart, water wise and wildlife friendly landscaping.

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The Ecology Blog: What’s Happening in Sonoma Valley

Survey Results Offer Snapshot of Valley Priorities

Survey Results Offer Snapshot of Valley Priorities

Sustainable Sonoma was formed to take action on solutions to our community’s biggest challenges. First we have to know what the community’s top priorities are – and to that end a Valley-wide survey was conducted by Sustainable Sonoma over several months. Now the...

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Oslo Event Puts Biochar in Spotlight

Oslo Event Puts Biochar in Spotlight

Sonoma Ecology Center’s Biochar Initiative is headed to Norway. Raymond Baltar, our biochar program manager, has been invited to join a panel discussion on greenhouse gas drawdown strategies at a climate conference in Oslo, Norway in early January. The panel is made...

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Sorrowful, Determined, Thankful

Sorrowful, Determined, Thankful

For Sonoma Valley residents, the worst part about the latest round of California wildfires isn’t the smoke itself – smoke which, due to the fires in Butte County, has caused the longest stretch of days of bad air quality in the Bay Area in recorded history. But for...

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Fogbow in the Hills

Fogbow in the Hills

When there's fog in the Valley, the boundary where sun and fog meet often creates interesting tricks of light, like this fogbow seen up in the hills on Thursday morning. Fogbows are formed by the same light-scattering process as rainbows. But fog is made up of much...

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