IzauteThe Izaute is a river in south-western France, a right tributary of the Gélise. It is long.GeographyIt has its origin in the commune Dému in the Gers it joins the Gélise on the border of Lot-et-Garonne close to Saint-Pé-Saint-Simon.Departments and principal cities Gers: Lannepax, Bretagne-d'Armagnac, Cazeneuve, Labarrère