Dunnigan Hills AVA

The Dunnigan Hills AVA is an American Viticultural Area located in the Dunnigan Hills, in Yolo County, California. Located in the northwest portion of Yolo County, the wine region has a Mediterranean climate that is less prone to frost than other parts of the Sacramento Valley. The largest winery in the Dunnigan Hills is R.H. Phillips, which has a 1300 acre estate vineyard.