Tags: Wine Region.
The Tracy Hills AVA is an American Viticultural Area located in both San Joaquin County and Stanislaus County California. The 39200 acres (15864 ha) region was designated an AVA as a result of a petition from the owners of Tulip Hill Winery in Lake County who owned a vineyard on Mount Oso in the Tracy Hills. The five original vineyards in the appellation are planted between 100 feet (30 m) and 500 feet (152 m) above sea level.