Red Mountain is an American Viticultural Area (AVA) located surrounding Red Mountain in Benton County, Washington between Benton City and the City of West Richland. It was established as the nation's 141st and the state's fifth appellation on April 10, 2001 by the Bureau of Alcohol, Tobacco and Firearms (ATF), Treasury after reviewing the petition submitted by Lorne Jacobson of Hedges Cellars proposing a viticultural area known as "Red Mountain." The small 4,040-acre (6 sq mi) wine region was the initial sub-appellation entirely within the Yakima Valley and the third wine region established within the expansive Columbia Valley. As of 2025, there is more than 2,382 acres (964 ha) being cultivated with primarily red varietals including Cabernet Sauvignon, Merlot, Sangiovese, Cabernet Franc and Syrah. The reputation of the Red Mountain's wines has brought worldwide attention and acclaim for producing some of the most desired Washington State vintages.