Vineyard website. From Gundlach Bundschu fact sheet for the 2005 vintage: "Mountain Terraces Vineyard is located on the southwestern slopes of the Mayacamas Mountains, 1,800 feet above the Sonoma Valley. Owned and farmed by the Schaefer family, this steep, warm, high elevation site produce Cabernet Sauvignon of unparalleld depeth and intensity."