Helen Putnam Regional Park 
411 Chileno Valley Rd.
Petaluma, CA 94952
707-433-1625
http://www.sonoma-county.org/parks/pk_helen.htm
Park: Bike, Fish, Hike, Horse, Picnic, Playground, Walk
This 216 acre park offers panoramic views of southern Sonoma County and northern Marin County. The park has trails for hiking, bicycling and horseback riding. A gazebo, picnic area, and children’s playground are located at the trail head. There is a large pond for fishing (bluegill mostly).