A mountain system of western South America extending more than 8,000 km (4,970 mi) along the Pacific coast from Venezuela to Tierra del Fuego. The Andes rise at many points to more than 6,500 m (21,325 ft).
The sierra is the region of the Andes, and is about 250 m.
The last section through the Andes was finished in 1910.
annually, but the drainage from the eastern slopes of the Andes is large enough to meet the loss from evaporation and keep these inland lakes from drying up. At an early period this depressed area drained southward to the Colorado, and the bed of the old outlet can still be traced.
Along the Brazilian frontier and about the sources of the Orinoco tributaries on the eastern slops of the Andes there are extensive forests, sometimes broken with grassy campos.
JALAP, a cathartic drug consisting of the tuberous roots of Ipomaea Purga, a convolvulaceous plant growing on the eastern declivities of the Mexican Andes at an elevation of 5000 to 8000 ft.