The Suisun Valley AVA is located in Solano County in northern California, east of Napa County. The appellation is very small, measuring only eight miles from north to south and three miles wide. Approximately 3000 of the valley's 15,000 acres are under vine; about twenty varieties are planted, such as Cabernet Sauvignon, Merlot, Chardonnay, Zinfandel, Sauvignon Blanc and a small percentage of Roussanne, Pinot Gris and Sangiovese. Soils are primarily clay loam, with some sand; vineyards are planted on hillsides and at high elevations, up to 1200-1500 feet. There are a dozen or so wineries in Suisun Valley; some the fruit is also purchased by leading Napa and Sonoma wineries. (Wine/Appellations)