Ancestors of Pueblo
What about the Anasazi
They built dams, ditches, and canals, they were very useful from where they live. Their houses were made of adobe and stone and it was like apartment buildings were everybody lived in one building but in seperate rooms. They also built roads for trading routes that was very smart, and the craftsmen made beautiful pottery and other things like jewelry and woven baskets. They left from many droughts too.
The Adena lived in Ohio in about 7000 BC, they grew squash, sunflowers, and barely. They made great copper jewelry and pottery. Last, they built burial mounds out of log like things.
Some pictures of the Adena
They were in Mississippi of course, it's in the name. Had plants like corn and beans to increase population, and the increase of population meant that they needed new land. More land meant they had a lot of cities and some were up to 10,000 people, they largest was Cahokia. In the middle of that city was a large mound 100 feet high base and 14 acres. Surrounding that mound was 120 smaller mounds.