Which valley does the Arenales River flow through?
Arenales River The Arenales River (Spanish, Río Arenales) is a river of Argentina. A tributary of the Salado River, the Arenales flows through the city of Salta.
Middle Magdalena Valley The Middle Magdalena Valley, Middle Magdalena Basin or Middle Magdalena Valley Basin (Spanish: "Valle Medio del Magdalena" , VMM) is an intermontane basin, located in north-central Colombia between the Central and Eastern Ranges of the Andes. The basin, covering an area of 34000 km2 , is situated in the departments of Santander, Boyacá, Cundinamarca and Tolima.