High Quality Content by WIKIPEDIA articles! The Pueblo II Era, AD 900 to 1150, was the second pueblo period of the Ancient Pueblo People of the Four Corners region of the American southwest. During this period people lived in dwellings made of stone and mortar, enjoyed communal activities in kivas, built towers and water conversing dams, and implemented milling bins for processing maize. Communities with low-yield farms traded pottery with other settlements for maize.