Front side Los Alamos ranks 25th on the Tri-County Top Climbs list with Fiets Index of 2.74 (backside is #45, although it is much harder than that - it ranks low due only to its minimal length, not lack of heart, for sure). The climb begins within the Santa Rosa city limits and is a favorite of local riders/climbers. No vineyard views along this route, but it has canyon, pasture and wild oak scenery and is a fairly steady climb for 3.5 miles at 7.1% average grade - a good work out.
Yep - winding road / The Wall on the right
The Up-and-Over (front and back side of LA map) bags you just about 2,000' of climbing in about 9 miles - a very efficient route.
The backside is possibly the best repeat segment in Sonoma County what with its nearly private smooth and steep 1.2 mile segment.
Traffic/Roadway surface: There is moderate traffic along this rural narrow two lane roadway. As with many rural Sonoma County roads, it is rough, potted and has sections with loose gravel (more during the winter months when there are the invariable slides along the route).
Cyclists welcome . . . but . . .