Tricastin
![View of the Rhône valley and the Tricastin](/Images/godic/202502/17/P1280070_-_Jonction_du_Rhône_et_du_canal_à_Mondragon2938.JPG")
![Mushroom hunter and his dog](/Images/godic/202502/17/Rabassier_et_son_chien2938.jpg")
![Tuber melanosporum, the French black truffle](/Images/godic/202502/17/Une_mélano_le_diamant_noir2938.jpg")
The Tricastin French pronunciation: [tʁikasˈtɛ̃] is a natural and historic region in the southern Rhône valley of southeastern France comprising the southwestern portion of the Drôme department and the northwestern portion of Vaucluse and centered on the modern town of Saint-Paul-Trois-Châteaux.