(Washingtonpost) - In 1561, a Spanish conquistador claimed a dusty chunk of western Argentina and designated a plot for a vineyard. In 2000, an Argentine wine was picked as the best offering by five British connoisseurs in a blind tasting at London’s Dorchester Hotel. The route between those two events, reveals American journalist Ian Mount in “The Vineyard at the End of the World,” has as many switchbacks as an Andean trail.