Oruro

Founded on November 1, 1606 as a silver mining center in the Urus region, Oruro is now a major city in Bolivia with a population of 235,393 (2010 census), located at 12,159 ft (3,706 m) above sea level. After the silver mines exhausted, Oruro was reestablished in the late nineteenth century as a tin mining center. For a time, Oruro’s La Salvadora tin mine was the most important source of tin in the world. Gradually, this resource became less plentiful, and Oruro again went into a decline, although its primary employer is still the mining industry.