Howell Mountain AVA
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.
Geography & Climate
The AVA encompasses a high Vaca Range plateau, with elevation, slopes, and exposures creating meaningful local variation.
Soils
Shallow, infertile volcanic soils regulate drainage, rooting depth, and vine vigor.
Wine Styles
The defining wines are powerful, firmly tannic Cabernet Sauvignon.