Mayacamas sits at the crest of Mount Veeder in Napa Valley. It's one of those places where you feel like you've reached a remote corner of the world. The vineyard is at the end of a steep, winding, rock-lined road in a pristine forest. Complete with a view of downtown San Francisco, it would be enchanting on its own terms. But of course the wines are what made it special. Wine Spectator's James Laube explains.