Which valley does the Arenales River flow through?
Salta Salta is a city located in the Lerma Valley, at 1,152 metres (3780 feet) above sea level in the northwest part of Argentina. It is also the name for the capital city of Salta Province. Along with its metropolitan area, it has a population of 619,000 inhabitants, which makes it the second most populated city in the northwest of the country.
Gualeguay River The Gualeguay River (Spanish Río Gualeguay) is one of the major rivers of the Mesopotamic province of Entre Ríos, Argentina. Its source is in the north of the province, in the region between the cities of Federación and San José de Feliciano, and meanders in a general south-southwestward direction across the center of the province for about 350 to , receiving a large number of tributary streams. It passes by the cities of Villaguay, Rosario del Tala, and Gualeguay, and finally empties into the Río Paraná Ibicuy, a distributary of the Paraná River in the Paraná Delta.