Saffron Vineyard is Lisa Chu’s organically farmed Mt. Veeder site, located high above the fog inversion line at an altitude of 1,500 feet, where daytime temperatures are often 15 degrees cooler than on the valley floor. The deep-rooted Merlot and Cabernet Franc grapevines were planted in 2000 in thin soils comprised of uplifted marine sediment and fractured shale.