The Estate vineyard is comprised of varied terrain, from flat to steep hillsides. The vineyard gently slopes downward towards its base, where a small patch of sedimentary soil was deposited by the settling of an ancient ocean or lake. Extending out from the Napa River is the alluvial soil, the most prevalent type on the property. In the back and outside areas of the vineyard are volcanic soils, formed by ancient lava flows caused by tectonic uplifting.
The decades old Zinfandel, planted in volcanic soil, combined with 10 year old vines in alluvial soil, produces a wine with a spicy, ripe berry flavor.