Smith-Madrone Cabernet Sauvignon 2015

82% Cabernet Sauvignon, 12% Merlot and 6% Cabernet Franc from 41 year old vines, estate-grown and dry-farmed. Aged for 18 months in French oak barrels - 75% new, 25% one year old. Unfined. 1388 cases made. 14.2% Alcohol. Smith-Madrone's Cabernet Sauvignon is grown at the top of Spring Mountain (1,800-foot elevation), west of St. Helena in the Napa Valley. The vines are planted on very steep slopes (up to 35%) in red "Aiken" soil which is derived from weathered volcanic materials and sedimentary rock. The underlying geology, the Franciscan m�lange, is just 500 miles long and was created by the Continental Plate grinding off the top of the Pacific Plate as it sub-ducts under the Continental Plate.