Navajo National Monument preserves three of the most-intact cliff dwellings of the Anasazi (Hisatsinom). The monument is high on the Shonto Plateau, overlooking the Tsegi Canyon system in the Navajo Nation in Northern Arizona.
Abandonment
Although many archaeologists agree that there is a definitive and sharp exodus from this region in the Southwest, there has been considerable debate on the determining factors that forced people to migrate out of this area. Archaeologists have determined that there was a distinct decrease in the amount of annual precipitation between AD 1276 and 1299, a period of time that is now referred to as the "Great Drought". With the limited amount of rainfall in an already arid environment, there is no doubt that there was a considerable amount of increased stress put on the agricultural systems that these people depended on.
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