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.
Rio Grande Valley The Rio Grande Valley is an area located in the southernmost tip of South Texas. It lies along the northern bank of the Rio Grande river, which separates Mexico from the United States. The four-county region, consisting of Hidalgo, Cameron, Willacy, and Starr counties, is one of the fastest growing places in the United States. From having about 325,000 people in 1969, to today a population over 1,300,000 in 2014.