In the mid-nineteenth century, two of the leading Chilean wine producers brought vines from Bordeaux to improve the quality of the original vineyard of Vina Los Vascos. Chile's natural geographic frontiers protected it from the Phyloxera epidemic of the late nineteenth century and resulted in an unbroken line of wine stock that now produces some of the finest wines in all of Chile. The Sauvignon Blanc made at Los Vascos comes from grapes purchased on long term contracts from both the Casablanca and Curicó areas. These areas are supervised during the pruning and growth periods by the Los Vascos team.