2 miles northwest of Yountville.
Barely a blip on the landscape as you drive north on Highway 29, Oakville is marked only by its grocery store. Oakville's small size belies the big mark it makes in the wine-making world. Slightly warmer than Yountville and Carneros to the south, but a few degrees cooler than Rutherford and St. Helena to the north, the Oakville area benefits from gravelly, well-drained soil. This allows roots to go deep—sometimes more than 100 feet deep—so that the vines produce intensely flavored grapes. Cabernet Sauvignon from the most famous vineyard here, To Kalon, at the base of the Mayacamas range, goes into many top-rated wines from winemakers throughout the valley. Big-name wineries within this appellation include Silver Oak, Far Niente, and Robert Mondavi.