There is evidence that native peoples lived in the Grand Canyon region for more than 12,000 years. Ruins and artifacts show that people lived in and utilized the resources of the Grand Canyon until about 800 years ago. Then, the population of the canyon crashed abruptly and dwellings were abandoned. At present, the only people living within the Grand Canyon are the Havasupai, but tribes living on the plateaus above, including the Hualapai, Mohave, southern Paiutes, Navajo, and Hopi, have also long made use of the canyon's resources.