The Anderson Valley AVA is an American Viticultural Area centered on the Anderson Valley in Mendocino County, California. It is known primarily for its Pinot noir and sparkling wine production. Lying 10 to 15 mi from the Pacific Ocean, the AVA is prone to wide diurnal temperature variation of between 40 and 50 F-change. The valley often has long Indian summers. Wineries in the AVA host an annual Alsatian wine festival where locally produced Riesling and Gewurztraminer wines are showcased.