Lake Titicaca is a lake located on the border of Peru and Bolivia. It sits 3,812 m above sea level, making it one of the highest commercially navigable lakes in the world. By volume of water, it is also the largest lake in South America.
The lake is located at the northern end of the endorheic Altiplano basin high in the Andes on the border of Peru and Bolivia. The western part of the lake lies within the Puno Region of Peru, and the eastern side is located in the Bolivian La Paz Department.
Lake Titicaca is fed by rainfall and meltwater from glaciers on the sierras that abut the Altiplano. The lake has also 41 islands, some of which are densely populated.