This region tends to be cool and cloudy. Pais (aka Mission in California) is the most planted grape. This traditional and long overlooked wine valley—the largest and one of the oldest—has attracted renewed and much-deserved attention of late. Old-bush, dry-farmed vineyards that predate the memories of those who tend them now produce exciting, naturally balanced field blends of Carignan, Cabernet Sauvignon, Malbec, and other yet to be identified varieties. Newer plantations include Merlot, Cabernet Franc, and Carmenere with bright acidity and juicy fruit.