An almost dried-up Lake Poopó (also called Lake Aullagas) is visible in this low-oblique, west-looking photograph. Lake waters have been receding since 1990 and the inflow of the Desaguadero River at the lake's north end (brown) has slowed to a trickle. At the south end of the lake is a small river that drains Lake Poopó and follows a westward course until it finally drains into Salar de Coipasa (not visible in the photograph). Without years of near-normal or above-normal precipitation in the region, the lake will continue to dry because of evaporation resulting from intense sunshine and strong winds. A small light blue lake is visible east of Lake Poopó near the town of Challapata (grayish smudge at the base of the mountains south of the small lake). With the carrying capacity of Lake Poopó becoming inadequate, migratory wading birds from North America will need to find other area lakes for their wintering grounds.