Shenandoah Valley California The Shenandoah Valley AVA encompasses parts of Amador and El Dorado counties and was declared 28 December 1982. It was named after Virginia's Shenandoah Valley and to avoid confusion the word "California" must always be used on wines bottled here. Vineyards & Wineries: Bella Piazza Winery Noceto Villa Toscano Winery Vino Noceto