Ring Mountain Open Space Preserve

Marin County, California · County Open Space Preserve

A 385-acre Marin County preserve on a serpentine hillside between Tiburon and Corte Madera, renowned for rare endemic plants like the Tiburon mariposa lily, sweeping San Francisco Bay views, Native American heritage, and trails through oak woodland and wildflower grasslands.

Top trails

• Ring Mountain via Loop and Phyllis Ellman Trail — 2.9 mi loop
• Ring Mountain Fire Road — 4.1 mi out & back
• Phyllis Ellman Trail, Turtle Rock and Ring Mountain Fire Road — 2.1 mi out & back

Visiting

Fees — General Admission: $0, Roadside Parking: $0.

Parking: Street parking only; no dedicated lot exists. Visitors are asked to avoid blocking streets, gates, or driveways out of respect for local residents.. Dogs allowed. Phone: 415-473-2816.

Coordinates: 37.9099, -122.4858. Official website.

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