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.

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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.