North American Societies . Complex Societies in the West. The Pacific Northwest was rich in resources and supported a sizable population. To the Kwakiutl, Nootka and Haida peoples the sea was the greatest resource.
Many Anasazi pueblos were abandoned by 1200, possibly because of prolonged drought.
The last mound builder culture, the Mississippian, lasted from around 800 C.E. until the arrival of Europeans.
There were hundreds of different patterns of Native American life in North America.