Marsh Open Space Preserve,
Marin County Open Space District,
1.6 mile out and back walk on a paved multi-use trail right off US 101.
Distance, category, and difficulty:
This 1.6 mile out and back walk is easy. The trail is perfectly flat.
Paved fire road.
Less than 1 hour.
Nice year round.
From northbound US 101 in Marin County, exit CA 1/Mill Valley/Stinson Beach and turn right onto the first road at the base of the exit ramp, Pohono Street. Park on the side of the street (there are a few additional side-of-street spots on Shoreline, just north and south of Pohono).
Get driving or public transit directions from Transit and Trails:
GPS coordinates* for trailhead:
(* based on Google Earth data, shown as degrees, minutes, seconds)
Gas, food, and lodging:
Pay phone, gas, stores, and restaurants south on Bridgeway in Sausalito, or north along Shoreline at Tam junction. No camping.
Scarce parking on the side of the road (adjacent parking lots are reserved for business tenants). No parking or entrance fees, and no facilities. No designated handicapped parking on the street. There is a drinking fountain on the side of the trail just north of the Richardson Bay Bridge. Golden Gate Transit buses stop at this trailhead. Visit 511.org for details.
None posted on the trail, which is multi-use. Dogs are permitted on the paved trail, but there are some parts of the marsh from which they are prohibited.
The Official Story:
MCOSD field office 415-499-6405
MCOSD Bothin Marsh page
Use AAA's San Francisco Bay Region map to get there.
Download the preserve map pdf from MCSOD
Map from Bay Trail
Trails of Mt. Tamalpais and the Marin Headlands, by Gerald Olmsted (order this map from Amazon.com) shows the trail to and through Bothin Marsh.
Barry Spitz's Open Spaces has a good map and trail description (order this book from Amazon.com).
Go to Bay Area Hiker Home page
you've exited northbound US 101 on the way to Mount
Tamalpais, you've driven right past Bothin Marsh
and the Bicentennial Bike Path. Originating (in the loosest sense) on
Sausalito's Harbor Drive, the Bicentennial Bike Path travels along the
side of Bridgeway Boulevard, passes under the highway, then bisects Bothin
Marsh and continues north into Mill Valley. For cyclists, Bicentennial
Bike Path is one of a handful of bike paths that ease cycling trips through
southern Marin County. Hikers without a destination along the Bicentennial
Bike Path will probably prefer to pick up the trail just off US 101's
Shoreline exit, and walk out-and-back on it through Bothin Marsh.