Editing Pecos Classification (section)

===Pueblo IV Period (1350 – 1600)===
{{main|Pueblo IV Period}}

Typically, large pueblos are centered around a [[plaza]]. Socially, this was a period of more conflict than cooperation, which is thought to have led to abandonment of settlements at Mesa Verde. The people began making [[kachina]]s for religious and ritual purposes. Plain pottery supplants corrugated. Red, orange and yellow pottery is on the rise as the black-on-white declines.  [[Cotton]] is introduced and grown as a commodity.

The Puebloans are joined by other cultures.  As early as the 15th century, the Navajo were in the process of migrating into the region from the north.  In the next century, the [[Spanish colonization of the Americas|Spanish]] colonists first came in the 1540s from the south.