The Fête de la Châtaigne is a seasonal gathering built around one of the emblematic products of the Haut-Languedoc. In Saint-Pons-de-Thomières, the weekend brings together chestnuts roasted over wood fires, local producers, food stalls, artisan makers and the atmosphere of an autumn market in the old town. The event is culturally relevant because it links landscape, traditional food resources and the small-scale know-how of growers and craftspeople. It offers a concrete way to understand terroir: not as a marketing label, but as a lived relationship between a mountain area, its products and its people.