lake in northern Tanzania, 60 miles (100 km) west-southwest of Arusha. It is 30 miles (50 km) long and 10 miles (16 km) wide and contains salt and rock phosphate deposits. Lake Manyara National Park, founded in 1960 and covering 124 square miles (320 square km), contains five distinct vegetation zones. Wildlife of the area includes buffalo, elephant, lion, leopard, rhinoceros, and many water birds, especially flamingos.