Title: Mogollon Prehistoric Cultures of the Southwest
Author: Rose Houk
…In the thirteenth and fourteenth centuries, most Mogollon people had found a mecca in central Arizona. Pueblos there grew to house more people, and by the fourteenth century nearly everyone was living in communities of one hundred to eight hundred rooms. Northern folk were entering the mountains from the plateau country, sometimes living with the Mogollon, other times setting up their own pueblos. People were migrating in from the east and from the southern deserts as well. Severe drought, lasting from 1276 to 1299, had hit parts of the Southwest, and the mountains offered refuge.
Houk, Rose. Mogollon. Western Natl Parks Assoc, 1992. Print.