A Native American olla jar is a type of ceramic pot, traditionally used by Southwestern tribes for storing and carrying water, especially in arid regions. These jars are often unglazed and slightly porous, allowing water to slowly seep out and evaporate, which helps to cool the remaining water inside. The word "olla" is Spanish for a large pot, and these jars were essential for daily life, particularly for women who would carry them on their heads to gather water