This American Viticultural Area is in Sonoma County, California, United States. The appellation covers most of the county with the notable exceptions of the Los Carneros AVA and Sonoma Valley AVA wine regions, which are located in the southern portion of the county. The viticultural area incorporates the Alexander Valley AVA, Chalk Hill AVA, Dry Creek Valley AVA, Knights Valley AVA, Russian River Valley AVA, Sonoma Coast AVA, and parts of the Green Valley of Russian River Valley AVA and Rockpile AVA valleys.

See winery listings for this region