Pueblo I period

The Pueblo I period (750 to 900) was the first period in which Ancestral Puebloans began living in pueblo structures and realized an evolution in architecture, artistic expression, and water conservation.

Pueblo I, a Pecos Classification, is similar to the early "Developmental Pueblo period" of 750 to 1100. It is preceded by the Basketmaker III period, and is followed by the Pueblo II period.