Castets-en-Dorthe

Castets-en-Dorthe (Gascon: Castèths Andòrta) is a former commune in the Gironde department in Nouvelle-Aquitaine in southwestern France. On 1 January 2017, it was merged into the new commune Castets et Castillon.

The village lies at the junction of the Canal de Garonne with the river Garonne.