Adena Indians built mounds using the women and girls of the tribe. They carried clay and earth in woven baskets to the site of the mound. The men only supervised. This from the book"Mounds in the Mist, by Harry Kroll and Mildred Payne
Mounds were build as a part of spiritual ritual. Today many would consider the mounds, one example being the Serpent mound located in Ohio as art. But, art during the time that most of these mounds...