When it comes to US wine production, California is King. California wines account for almost 90% of all wines produced in the United States each year, and is home to the most celebrated vineyards and producers in the country. California is probably best known for its world-famous Cabernets and Chardonnays, many of which hail from its two most-acclaimed AVAs, Napa Valley and Sonoma County. Other prominent grapes used in California wines include Merlot, Pinot Noir, Sauvignon Blanc, Syrah, and Zinfandel (which California made popular).
 
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