Free Entry to Sugarloaf Ridge State Park on Earth Day

Enjoy free entry to Sugarloaf Ridge State Park, operated by Sonoma Ecology Center, in celebration of Earth Day and Sonoma Ecology Center’s 35th Anniversary on Tuesday, April 22, 2025!

Sonoma Ecology Center, a 501(c)(3) organization, is honored to manage the operations of Sugarloaf Ridge State Park, and works to ensure the park remains accessible to the public, that its trails and infrastructure are well-maintained, and that educational programming is available for everyone to enjoy. While Sugarloaf is a California State Park, it does not receive operational funding from the State—it is our visitors, donors, volunteers, and members who make it possible for us to keep Sugarloaf Ridge State Park open for the community to enjoy.