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WalkBikeMarin is an initiative by the County of Marin to help make Marin more healthy, livable, and environmentally sustainable by encouraging walking and bicycling as everyday transportation. This initiative was catalyzed by a recent $25 million federal grant to fund the Nonmotorized Transportation Pilot Program (NTPP). The goal of the WalkBikeMarin website is to provide information about all the County’s bicycle and pedestrian projects and programs in one place. For more information on the NTPP see the About the Project page.
Recent News
WalkBike Profile: Celia Graterol, Mill Valley
Celia Graterol photoOccupation:
Mountain bike tour guide and teacher

How often do you ride your bicycle?
Usually 5 days a week, about 50-70 off road miles, and about 30-40 road miles commuting to meeting in San Francisco and around Marin.

When and why did you start riding a bike regularly?
About 8 years, I needed to get in shape and lose weight so I started to commute to San Francisco on my road bike. Over a couple of years I lost about 50 pounds, and along the way I fell in love with cycling and mountain biking.

What are your reasons for bicycling?
Mountain Biking provides me with the opportunity to enjoy the gorgeous Marin outdoors, exercise and experience the adrenaline rush when riding challenging singletracks. After a good mountain bike ride I am relaxed, filled with joy and love for life.

What would help you to bike more often?
Opening all the old train system tunnels in Marin so there is a flat way separated from cars to road ride from Sausalito all the way to Novato. And opening more off-road singletrack trails, in particular in Mt. Tam where all singletracks but one (Coastal View trail) are closed to bikes.

view past profiles >

What's New


WHITES HILL IMPROVEMENTS June, 2020 ~ Sir Francis Drake Boulevard has been repaved between the Brown Bridge and Fairfax town limits.  There is now a continuous bike lane in the westbound/uphill direction and the roadway was widened to provide an eastbound bike lane starting at the bottom of the hill.  A high-friction paving material was applied in the downhill direction to improve traction through the curves, especially for when the road is wet.

TIPS FOR NEW AND RETURNING CYCLISTS April, 2019 ~ WalkBikeMarin in partnership with Marin County Bicycle Coalition has prepared an informational page with tips for first-time or it's-been-a-while-since cyclists to get your ride going in the right direction.  

2018 UNINCORPORATED AREA BICYCLE/ PEDESTRIAN MASTER PLAN ADOPTED February, 2018 ~ The 2018 Marin County Unincorporated Area Bicycle and Pedestrian Master Plan was adopted by the Board of Supervisors on February 27.  The document can be viewed and downloaded from the Plan web page at .  The Plan page also has additional information about bicycle and pedestrian plans, including those of other communities in Marin. 




See the Events Calendar for other upcoming events.

Did You Know?
The modern bicycle, complete with a steel frame, a chain drive, steel wheels and spokes, and pneumatic tires, was developed in the 1880s.


Marin County Safe Routes to School