Estate winery. An estate winery on the silverado trail. Black Stallion Estate Winery is located in Napa Valley's Oak Knoll District along the Silverado Trail. It is name in honor of the historic equestrian estate that one graced the ground and was the largest of its kind in California. The picturesque fieldstone exterior houses a state-of-the-art winery designed for crafting wines from Napa Valley's finest vineyards. This refreshing Sauvignon Blanc is fermented in stainless steel to preserve the vibrant grapefruit and lemongrass aromatics. This wine exhibits layers of fresh fruit flavors with tantalizing acidity and a pleasantly long and lingering finish. Perfect to enjoy with salads and cheeses. Family sustainability & quality. blackstallionwinery.com. Alcohol 14.5% by volume.