Built well before 1492 CE, these towns and villages were located in defensive positions, for example on high, steep mesas such as at Mesa Verde or present-day Acoma Pueblo, called the "Sky City", in New Mexico. 100. Cinema Specialist . But guys do please study. About A.D. 100, Ancestral Puebloans lived in what is today the Four Corners region of Arizona, New Mexico, Colorado, and Utah. [The Navajo word is anaasz (