Throughout the centuries, the Anasazi weathered comparable crises—a longer and more severe drought, for example, from 1130 to 1180—without heading for the cliffs or abandoning their lands.

Bordering the states of Arizona, Nevada and Utah, this area covers the entire known land occupied by the Anasazi Indians. Water glyphs are about 48 inches long by 24 inches wide and consist of a ...

Chaco, the imperial city of the Anasazi, was ruled for four hundred years by a stern hierarchy of astronomer-priests until it was swiftly abandoned around 1250 AD. “Why did they leave?” ...

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Already, there was talk of a prehistoric culture of "cliff dwellers" — now known as the Anasazi — that seemed to have vanished into thin air. Lumholtz speculated that they had migrated south ...

FILE - People cast shadows on the ancient Anasazi ruins of Chaco Culture National Historical Park in New Mexico on Nov. 21, 1996. AP Photo/Eric Draper, File) ...