Around A.D. 1250, seeking refuge from some unknown threat, the Anasazi ... Arizona Tree-Ring Laboratory to 1273 to 1285. Dean dated nearby Betatakin and Keet Seel, two of the largest cliff ...

If the hike to the Betatakin cliff dwellings ended at a big blank wall ... the largest cliff dwelling in Arizona; and ...

At Mesa Verde, Spanish for "green table," multistoried dwellings fill the cliff ... an ancient dwelling of the Anasazi people and the third largest cliff dwelling in Colorado's Mesa Verde National ...