Howell Mountain
Founded in 1990 by Betty O'Shaughnessy, this Angwin estate spans three prestigious Napa appellations—Oakville, Howell Mountain, and Mt. Veeder—crafting Cabernet Sauvignon and Bordeaux varietals with care. Under winemakers Sean Capiaux, Aaron Elam, and Mara Couch Fitzgerald, O'Shaugnessy focuses on quality from vineyard to glass, including fruit from Betty's vineyard.
Amenity information reflects general winery policy and may not account for events, weekends, or seasonal changes. If you're planning a specific visit — especially with children, pets, or a group — a quick call ahead is worthwhile.
O'Shaughnessy Estate Winery
1150 Friesen Dr
Angwin, CA 94508