Connecting Marin County & the Bay Area

Friends of the Greenway and the Alto Tunnel are dedicated to seeing the reopening of the tunnel, providing people of all ages and abilities a safe, easily accessible, car-free way to walk and bike between northern and southern Marin and beyond.

Sign Our Petition

Help us advance the idea of reopening the tunnel! Two supporters have pledged to match gifts of community supporters of up to $10,000. Your gift will help us deliver our call to action to our elected officials and the public at large. Thank you!