Patayan is a term used by archaeologists to describe prehistoric and historic Native American cultures who inhabited parts of modern-day Arizona, west to Lake Cahuilla in California, and in Baja California, between 700–1550 CE. This included areas along the Gila River, Colorado River and in the Lower Colorado River Valley, the nearby uplands, and north to the vicinity of the Grand Canyon.
Patayan culture is sometimes known as the Hakataya culture. Their nearest cultural neighbors were the Hohokam in central and eastern Arizona. The historic Yuman-speaking peoples in this region were skilled warriors and active traders, maintaining exchange networks with the Pima in southern Arizona and with the Californian Pacific Coast tribes.
The name "Patayan" comes from the Quechan language and means "old people". However, alternative terms have been proposed for the culture group, as the archaeological record of the Patayan is poorly understood. Archaeologist Malcolm Rogers first identified the Patayan, publishing a definition and chronology of the culture group in 1945. His survey records identified hundreds of desert sites. The harsh environment limits the amount of ongoing archaeological fieldwork in the area and there are not many remains to find. Most Patayan people appear to have been highly mobile and did not build large structures or accumulate numerous possessions. Patayan sites may have raised crops.
Significant archaeological remains of Patayan cultures appear near 875 A.D. and many cultural characteristics continued into historic times. The Patayan Culture may have originally emerged along the Colorado River, extending from the area around modern Kingman northeast to the Grand Canyon. These people appear to have practiced floodplain agriculture, a conclusion based on the discovery of manos and metates used to process corn in these areas. Stone points and other tools for hunting and hide preparation have been found, suggesting an economy based both on agriculture and hunting and gathering.