A well-kept secret (only sold at the winery) is the excellent Riesling produced from Potter Valley. The 1999 Riesling Potter Valley (13% alcohol) is a dry, Alsatian-styled effort with a touch of honeyed botrytis in the pineapple, orange, and buttery apple-like flavors. Fresh and lively, it will drink brilliantly with an assortment of cuisines. Tel. (707) 942-5105; Fax (707) 942-4221