Xerta is a town and municipality of the comarca of Baix Ebre. It is established in a sharp bend to the right of the river Ebre, about 12 km upstream from the city of Tortosa in the province of Tarragona, Catalonia, Spain.
Wikipedia https://en.wikipedia.org/wiki/Xerta
Coordinates 40°54'28.823" N 0°29'27.977" E