The Montagne de Lure is a long ridge stretching from the west to the east. It is mainly calcareous and its geological origins belong to the massif of Mont Ventoux. It is characterized by wooded sides and a barren crest. Together with Mont Ventoux, it marks the linguistic boundary between the alpine varieties of the Occitan language, characterized by the palatalization of velars, and Provencal which maintains the velar sound. These places are described by the writer Jean Giono (1895-1870). He is the author of ‘The Man Who Planted Trees’, to mention his most renowned novel, who was born in Provence, in Manosque, to parents coming from Piedmont. Reading his works helps to understand the Provencal and European territories in general, fruit of the interaction between man and land.