Diablo Grande AVA
The Diablo Grande AVA is an American Viticultural Area located in Stanislaus County, California. All
in the AVA are owned by the Diablo Grande Resort Community, and Isom Ranch Winery is the only winery producing wines that carry the Diablo Grande AVA designation on their labels. Vineyards in the AVA are planted between and above sea level. The region is named after nearby Mount Diablo, the highest peak in the Pacific Coast Range.
