Hailstone Vineyards does not own a named estate vineyard or purchase fruit by the ton. Instead, founders Chris and Jessica Zazo, working closely with winemaker Chad Alexander, lease select rows within premier Napa Valley vineyards, walking the sites to make meticulous block-by-block selections. The 2022 Proprietor’s Reserve draws fruit from Diamond Mountain District, a high-elevation AVA perched above Calistoga on the Mayacamas range, where volcanic soils and steep terrain stress the vines and yield small, thick-skinned Cabernet Sauvignon with firm tannins, concentrated dark fruit, and distinctive mineral lift. Wines are produced at Ballentine Vineyards’ custom crush facility.

The 2022 growing season presented Diamond Mountain growers with heat and selective rain, yet the AVA’s elevation and volcanic soils proved advantageous — mountain sites delivered concentration and freshness when handled with precision. Hailstone’s Proprietor’s Reserve captures that balance, yielding a structured, age-worthy Cabernet that rewards both near-term decanting and extended cellaring.

The 2022 Proprietor’s Reserve leads with aromas of cassis, dried violets, and blackberry before opening onto a palate of black currant, dark plum, and a hint of caramel contributed by 22 months in 100% French oak. Diamond Mountain’s characteristic firm tannins anchor the finish, which delivers mountain structure rather than valley-floor plushness. Decanting 45 to 60 minutes is recommended before serving.