“ Oruro is almost exclusively a mining department, the country being too arid for agriculture, with the exception of a narrow strip in the foothills of the Cordillera de los Frailes, where a few cattle, mules and llamas, and a considerable number of sheep are reared. The mineral wealth has not been fully developed except in the vicinity of the capital, in the north-east part of the department, where there are large deposits of tin, silver and copper, Oruro being the second largest producer of tin in the republic. ”

“ The outlet of Lake Titicaca, the Desaguadero river, flows southward into Lake Pampa-Aullaguas, or Poöpo, on the eastern side of the department near the Cordillera de los Frailes. Lake Pöpo is 12,139 ft. ”