Pueblo III Period

Ancestral Puebloan periods
Archaic–Early Basketmaker Era 7000–1500 BCE
Early Basketmaker II Era 1500 BCE–50 CE
Late Basketmaker II Era 50–500
Basketmaker III Era 500–750
Pueblo I Period 750–900
Pueblo II Period 900–1150
Pueblo III Period 1150–1350
Pueblo IV Period 1350–1600
Pueblo V Period 1600–present

The Pueblo III Period (AD 1150 to AD 1350) was the third period, also called the "Great Pueblo period" when Ancestral Puebloans lived in large cliff-dwelling, multi-storied pueblo, or cliff-side talus house communities. By the end of the period, the ancient people of the Four Corners region migrated south into larger, centralized pueblos in central and southern Arizona and New Mexico.

The Pueblo III Period (Pecos Classification) is roughly the same as the "Great Pueblo Period" and "Classic Pueblo Period" (AD 1100 to AD 1300). It is preceded by the Pueblo II Period, and is followed by the Pueblo IV Period.