This climb shares is the first 5 1/2 miles of the most difficult climb in the North Bay Area (Mt. St. Helena). Old Lawley Toll Road intersects with Hwy 29 just before the Hwy pitches up for its 5 mile climb to Robert Louis Stevenson State Park (OLTR runs roughly parallel to Hwy 29 for 3 miles until intersecting it again a little over halfway to the summit).
Although brief, this is a very charming rural wine country climb that is quite manageable for cyclists visiting Napa County who are interested in getting a little climbing in during their time in this beautiful country (continue up to the top of Mt. St. Helena for the more vigorous vacation jaunt).
Roadway surface/Traffic: The roadway is in moderately poor condition, but is easily manageable and traffic is light to nil.