Sierra Oaks Estates Vineyard & Winery Sierra Oaks Estates is a family-owned and operated vineyard & winery proudly producing estate Merlot, Syrah, and Zinfandel, Cabernet Sauvignon, Cabernet Franc, and Petite Syrah wines. In the Fair Play wine appellation, El Dorado County, California. Sierraoaksestates.com~Site InfoWhoisTrace RouteRBL Check