August 2021: Due to the public health risks of Covid-19, the preserves are closed until further notice.

Audubon Canyon Ranch owns and acts as guardian of four nature preserves in Marin and Sonoma counties, California. These 5,000 acres are made up of tidal flats, marshlands, coastal prairie, oak woodlands, grassland, chaparral, mixed evergreen forests and redwood groves. They provide significant habitat to wildlife and have been placed in our care by generous donors to steward and protect in perpetuity.

ACR's Preserves

Martin Griffin Preserve 1,000-acre preserve in West Marin just north of the town of Stinson Beach

Bouverie Preserve 535-acre preserve in Sonoma County's Valley of the Moon

Cypress Grove and the Tomales Bay Preserves  500 acres dotted along Tomales Bay near Marshall, Marin County

Modini Preserve  3,000-acres in the Mayacamas Mountains of Sonoma County