BARRAUX, a fortress of Dauphiny, belonging to France, now in the department of Isere. It stands in the valley of Gresivaudan, and was built by a duke of Savoy in 1597. The French took it in 1598, and have kept it ever since. It is seated on the river Isere, in E. Long. 5. 10. N. Lat. 45. 0.