In the 1880s, UC Davis professor Eugene Hilgard planted clone 6 (also called the Jackson clone) at the university's Jackson field station in the Sierra Foothills. It was abandoned until being rediscovered almost a century later. In 1980, we began a 14-year series of trials in conjunction with UC Davis to identify Cabernet Sauvignon clones best suited to our Rutherford Bench terroir. Two clones (numbers 4 & 6) were ultimately selected for grafting to rootstocks planted in the well-draining, alluvial fan soils of our estate vineyards. As a component of our Georges de Latour and other reserve Cabernet Sauvignons, Clone 6 has small loose clusters and berries that yield highly concentrated, distinctive flavors. Often referred to as our mountain fruit on the valley floor, it produces Cabernet that is very concentrated with more structure and muscular tannins.