California's Napa and Sonoma valleys produce this bold red wine grape in quantities close to Bordeaux. Argentina's Salta Province, in the high-altitude Valles Calchaquíes near Cafayate, also grows it alongside Torrontés and Malbec. Which grape is it?

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Accepted Answer

Cabernet Sauvignon. Cabernet Sauvignon is a full-bodied red wine grape that originated in Bordeaux and became one of the world's most planted varieties. California's Napa Valley and the high-altitude Salta Province of Argentina are both major producers.