What Were The Features Of The Mound Builders Civilization?

What Were The Features Of The Mound Builders Civilization? The namesake cultural trait of the Mound Builders was the building of mounds and other earthworks. These burial and ceremonial structures were typically flat-topped pyramids or platform mounds, flat-topped or rounded cones, elongated ridges, and sometimes a variety of other forms. What were the Mound Builders