Lucas Valley Open Space Preserve

Marin County, California · Open Space Preserve

A 1,271-acre Marin County open space preserve near San Rafael, featuring trails to Big Rock Ridge (1,887 ft), the second-highest point in Marin County. Known for raptors, golden eagles, sweeping views, and multi-use trails welcoming hikers, mountain bikers, and leashed dogs.

Top trails

• Big Rock Ridge Trail (Bay Area Ridge Trail: Lucas Valley Open Space) — 7.2 mi out & back
• Bay Area Ridge Trail: Lucas Valley Open Space to H Ranch — 6.4 mi out & back
• Lucas Valley Loop Trail — 3.9 mi loop

Visiting

Fees — General Admission: $0.

Parking: Street parking only along Lucas Valley Rd — no dedicated lot. Visitors must not block streets, gates, or driveways out of respect for local residents.. Dogs allowed on leash.

Coordinates: 38.0592, -122.6042. Official website.

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