Alexander Valley in Sonoma is the most famous place in California other than Napa that makes great Cabernet and Bordeaux style blends. Abutting the Mayacamas mountain range, Napa being on the other side. The Valley makes Cabernet that are generally more approachable, more supple in their youth and seem to do well aged in American Oak. Alexander Valley makes big reds that rival the best. You have to be more selective and very importantly they are definitely offer better value than Napa and other leading Cab regions around the world.