the Moundbuilders
noun /ðə ˈmaʊndbɪldəz/
/ðə ˈmaʊndbɪldərz/
[plural]- early Native American groups who built mounds (= raised masses of earth). These were used for graves and as the bases for religious temples and other important buildings. Well-known mounds that survive include those at Moundville, Alabama, and the Serpent Mound in Adams County, Ohio.