What is the Lubéron? It is a range of mountains called the Grand and the Petit Luberon divided by a valley called the Combe de Lourmarin; a regional park called Parc naturel régional du Luberon; a cultural region that has long drawn an eclectic mix of writers, hikers, and well-heeled Parisians; and, as of 1988, an Appellation d'Origine Contrôlée (AOC), meaning its wines achieved a high enough level of quality to merit their inclusion in the government system that protects the integrity of French...