110 miles NW of Canyon de Chelly; 140 miles NE of Flagstaff; 60 miles SW of Monument Valley; 90 miles E of Page

Navajo National Monument, 30 miles west of Kayenta and 60 miles northeast of Tuba City, encompasses three of the largest and best-preserved Ancestral Puebloan cliff dwellings in the region -- Betatakin, Keet Seel, and Inscription House. It's possible to visit both Betatakin and Keet Seel, but, due to its fragility, Inscription House is closed to the public. The name Navajo National Monument is a bit misleading. Although the Navajo do inhabit the area now, the cliff dwellings were built by Kayenta Ancestral Puebloans, the ancestors of today's Hopi and Pueblo peoples. The Navajo did not arrive in this area until centuries after the cliff dwellings had been abandoned.

For reasons unknown, the well-constructed cliff dwellings here were abandoned around the middle of the 13th century. Tree rings suggest that a drought in the latter part of the 13th century prevented the Ancestral Puebloans from growing sufficient crops. In Tsegi Canyon, however, there's another theory for the abandonment. The canyon was usually flooded each year by spring and summer snowmelt, which made farming quite productive, but in the mid-1200s, weather patterns changed and streams began cutting deep into the soil, forming narrow little canyons called arroyos, which lowered the water table and made farming much more difficult.