Salta is a city located in the Lerma Valley, at 1,152 metres (3780 feet) above sea level in the north west part of Argentina and it is also the name for the capital city of the 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. Within Argentina, Salta is the city which has preserved its colonial architecture the best.