The Sonoma Group is part of the Redwood Chapter, and is made up of Sierra Club members who live in Sonoma County. The Sierra Club is a grass­roots, volunteer-­led organization. We invite you to find out more about our local activities and how you can be involved.

Join us on a Redwood Chapter outing! Outings are free and open to the public.

Learn about local environmental problems from our Issues pages.

Check the Calendar for local hikes and meetings.




DROUGHT UPDATE: Click on image to see current water storage levels in Lake Mendocino and Lake Sonoma.

SCWA water supply charts