Wine area
Howell Mountain AVA
Howell Mountain AVA is a designated wine appellation located within the California region of United States. Howell Mountain AVA covers a high Vaca Range plateau. sunny conditions entirely above the fog line, shallow, infertile volcanic soils, and varied elevation shape powerful, firmly tannic Cabernet Sauvignon.
Overview
Howell Mountain AVA occupies a high Vaca Range plateau within Napa Valley. Its vineyards vary by elevation, slope, and exposure, making it distinct from the main valley floor and neighboring mountain districts. Sunny conditions entirely above the fog line control ripening, while shallow, infertile volcanic soils influence drainage and vine vigor. The area is best known for powerful, firmly tannic Cabernet Sauvignon; vineyard and producer links provide the specificity behind that shared identity.
History
Winegrowing developed here before federal recognition established Howell Mountain AVA as a distinct American Viticultural Area within Napa Valley.
Geography
The AVA encompasses a high Vaca Range plateau, with elevation, slopes, and exposures creating meaningful local variation.
Climate
Sunny conditions entirely above the fog line distinguish the growing season from adjacent Napa districts.
Soils
Shallow, infertile volcanic soils regulate drainage, rooting depth, and vine vigor.
Wine styles
The defining wines are powerful, firmly tannic Cabernet Sauvignon.
Notable features
Its combination of a high Vaca Range plateau, climate, and soils makes this a distinct Napa Valley growing area.
Producers
More public records will be added as coverage expands.