Audubon Canyon Ranch

Audubon Canyon Ranch


Audubon Canyon Ranch protects nature through land preservation, environmental education and conservation science.


Audubon Canyon Ranch manages more than 5,000 acres of nature sanctuary, including the Cypress Grove Research Center on Tomales Bay, the 535-acre Bouverie Preserve near Glen Ellen and the 1,000-acre Martin Griffin Preserve near Stinson Beach, which is home to one of the San Francisco Bay Area’s most significant and most studied Great Egret and Great Blue Heron nesting sites.

A Community Organization

ACR’s programs are made possible thanks to the contribution of thousands of hours of volunteer service, and donations from caring individuals, foundations and businesses. ACR is an independent non-profit organization with 501(c)3 status. Our tax ID number is 94-6069140.

The information above can be found on the official website of Audubon Canyon Ranch. For more details about the organization and to find out how you can volunteer, please visit their website:

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