Stag s Leap Wine Cellars has a long and distinguished wine reputation and is considered a Napa Valley first-growth estate. We are best known for our estate-grown Cabernet Sauvignons CASK 23, S.L.V., and FAY. Over the years, these wines have become some of the most highly regarded and collected wines worldwide. They are fashioned to express classic elegance, structure, and ageability, and to reflect the place in which they are grown.. Vineyards