At an average elevation of 3,812 meters (12,507 feet), Lake Titicaca is one of the highest lakes in the world. The lake is positioned between two major ranges of the Andes Mountain chain and has very limited drainage. Because of the lack of drainage, the lake has accumulated sediments over the past 25,000 years. These sediment records are invaluable for paleoclimate research. The water level of the lake is still dependant on climate today and varies significantly in El Niño years. The limite...