http://www.bikesonoma.org published the BikeSonoma map recently. It covers all of Sonoma county indicating how busy the roads are, the grades, and whether they have shoulders. Bike paths are also shown (paved and unpaved) as well as water, restrooms, bike shops, and picnic sites.

Even though we've lived in Sonoma county many years the map is very useful to us when planning routes.

--L