Oasisamerica

Oasisamerica is a broad cultural area defining pre-Columbian southwestern North America. It extends from modern-day Utah down to southern Chihuahua, and from the coast on the Gulf of California eastward to the Río Bravo river valley. Its name comes from its position in relationship with the similar regions of Mesoamerica and nomadic Aridoamerica.

As opposed to their nomadic Aridoamerican neighbors, the Oasisamericans primarily had agricultural societies, Yet the climate did not permit very efficient cultivation as in Mesoamerica, and so they often resorted to hunting and gathering to meet their dietary needs.