Diamond Mountain is Napa Valley’s northernmost appellation and is located immediately southwest of Calistoga. Vineyards are above the fog line at elevations of 400 to 2200 feet and experience warmer nights and cooler days than the valley floor. Whereas young northern “valley floor” wines tend to be rich and supple with low to medium acidity and soft tannins, young Diamond Mountain wines tend to be tannic with good acidity, making them particularly well-suited for aging. In addition to the numerous highly rated Diamond Mountain wineries, several non-resident California wineries such as Juslyn, Robert Keenan, and Vineyard 7 & 8 produce exceptional wines from Diamond Mountain grapes. Scroll down for a comprehensive list of Diamond Mountain wineries and click “map view” to access the advanced winery search. Whether you would like to visit a winery that has wine caves, provides food to complement its wines, or produces wines from organic grapes, we make it easy to find the best Diamond Mountain wine tasting and touring destinations.