Cochabamba or Quchapampa is a city in central Bolivia, located in a valley bearing the same name in the Andes mountain range. It is the capital of the Cochabamba Department and is the fourth largest city in Bolivia with approximate population of 1.938.401. The name derives from a compound of the Quechua words qucha, meaning "lake", and pampa, "open plain". Residents of the city and surrounding areas are commonly referred to as Cochalas. Cochabamba is known as the "City of Eternal Spring".