We have dominated the world for just a few thousand years, an incredidbly short time compared to the 65 million years of the Age of Mammals or the 150 million years of the rule of the dinosaurs. The Anasazi culture flourished in what is known as the Four Corners region. It is the only place in the United States where four states share a common border. These states are New Mexico, Arizona, Utah and Colorado. Each of these states share in the history of the Anasazi.
Much debate goes on today as to how and why the sudden disappearance of the Anasazi.
Perhaps, in some of the links I have provided below, there may be some answers. Prior to about 1529 or thereabouts, the only people occupying the area now known as New Mexico were the native Indian groups located in their various Pueblos around the state as well as the nomadic Navajo, Apache, Ute and Commanche tribes. As fate would have it, after their ill-fated mission to Florida, three spaniards and one black moorish slave had survived unthinkable hardship and captivity enroute to any Spanish settlement they could find in what is now the country of Mexico, then called New Spain. Somewhere between what is now Galveston, TX where their odyssey began and Cinaloa, Mexico, they heard of a place of seven cities, filled with gold and riches of all sorts. Upon arriving unto the safety of their own kind they wasted no time in relaying the story of this fabled Cities of Gold.