Marin County Parks and Open Space Department

The Marin County Open Space District (MCOSD) manages approximately 249 miles of fire roads and trails on 34 open space preserves. Certain fire roads and trails are temporarily closed because of wet weather conditions, natural hazards, wildland fire, construction activities, and/or resource restoration projects. Fire roads and trails are closed to protect natural resources and user safety. Depending on site conditions, closures may affect some or all uses including bicyclists, equestrians, pedestrians, and vehicles.

The MCOSD posts closure signs at trailheads to notify visitors of current use restrictions and to remind visitors to use alternate routes. Please cooperate with closure restrictions while visiting the MCOSD lands; violators are subject to citation. Conditions and closures may change without notice on a daily basis due to weather, natural hazards, wildland fire, and/or the MCOSD activities. Visit related pages to learn about safety, rules and regulations, and the MCOSD policies. For questions about the MCOSD fire road and trail closures, contact Superintendent Brian Sanford at (415) 473-7473.

Seasonal Fire Road Closures

Blithedale Summit Preserve

Middle Summit Fire Road closes to vehicles, for natural resource protection.
Current status: Open

Camino Alto Preserve

Del Casa Fire Road closes to vehicles, for natural resource protection.
Current status: Open

Cascade Canyon Preserve

Cascade Fire Road closes to vehicles, for natural resource protection.
Current status: Open

Gary Giacomini Preserve

Conifer Fire Road closes to vehicles, for natural resource protection.
Current status: Open

Cortez Fire Road closes to vehicles, for natural resource protection.
Current status: Open

East Sylvestris Fire Road closes to vehicles, for natural resource protection.
Current status: Open

Manzanita Fire Road closes to vehicles, for natural resource protection.
Current status: Open

San Geronimo Ridge Fire Road East closes to vehicles, for natural resource protection.
Current status: Open

San Geronimo Ridge Fire Road West closes to vehicles, for natural resource protection.
Current status: Open

Summit Fire Road closes to vehicles, for natural resource protection.
Current status: Open

White Hill Fire Road closes to vehicles, for natural resource protection.
Current status: Open

Horse Hill Preserve

Horse Hill Fire Road closes to vehicles, for natural resource protection.
Current status: Open

Loma Verde Preserve

Chicken Shack Fire Road closes to vehicles, for natural resource protection.
Current status: Open

Little Cat Road Fire closes to vehicles, for natural resource protection.
Current status: Open

Pebble Beach Fire Road closes to vehicles, for natural resource protection.
Current status: Open

Ponti Fire Road closes to vehicles, for natural resource protection.
Current status: Open

Via Escondia Fire Road closes to vehicles, for natural resource protection.
Current status: Open

Winged Foot Fire Road closes to vehicles, for natural resource protection.
Current status: Open

Lucas Valley Preserve

Luiz Fire Road closes to vehicles, for natural resource protection.
Current status: Open

Terra Linda/Sleepy Hollow Preserve

Del Ganado Fire Road closes to vehicles, for natural resource protection.
Current status: Open

Mt. Muir Fire Road closes to vehicles, for natural resource protection.
Current status: Open

Terra Linda Ridge Fire Road closes to vehicles, for natural resource protection.
Current status: Open

White Hill Preserve

White Hill Fire Road closes to vehicles, for natural resource protection.
Current status: Open

Seasonal Trail Closures

Gary Giacomini Preserve

The Willis Evans Trail closes to bicyclists and equestrians, for Coho salmon habitat protection.
Current status: Open

Indian Tree Preserve

The Upper Meadow Trail closes to equestrians, for soil conservation.
Current status: Open

The Rent Barn Trail closes to equestrians, for soil conservation.
Current status: Open

The Deer Camp Cutoff Trail closes to equestrians, for soil conservation.
Current status: Open

Roy’s Redwoods Preserve

The Roy’s Redwoods Loop Trail closes to equestrians, for soil conservation.
Current status: Open

The Sprint Rock Trail closes to equestrians, for soil conservation.
Current status: Open

Updated On:

08.07.15

We update this page when closures, openings, or conditions change.