At the southernmost part of the Rhône, either side of the valley, you’ll find the appellations of Luberon and Costières de Nîmes. Luberon is on the east side, wedged between Ventoux and Coteaux d'Aix-en-Provence, and Costières de Nîmes is on the west side, right at the tip of the Southern Rhône, bordering on the Languedoc.