Ollas are used by Southwestern Native American tribes as water storage, while Kwaaymii people used them for cooking, serving meals, and even nursing infants.
Among Southwestern Native American tribes, ollas used for storing water often were made with narrow necks to prevent evaporation in the desert heat. The olla is used by the Kwaaymii people, among many others, for cooking, storing water, serving meals and even nursing infants. 
