<P> Today , the best - surviving features of the Hopewell tradition era are mounds built for uncertain purposes . Great geometric earthworks are one of the most impressive Native American monuments throughout American prehistory . Eastern Woodlands mounds have various geometric shapes and rise to impressive heights . The gigantic sculpted earthworks often took the shape of animals , birds , or writhing serpents . The function of the mounds is still under debate . Due to considerable evidence and surveys , plus the good survival condition of the largest mounds , more information can be obtained . </P>
<P> Today , the best - surviving features of the Hopewell tradition era are mounds built for uncertain purposes . Great geometric earthworks are one of the most impressive Native American monuments throughout American prehistory . Eastern Woodlands mounds have various geometric shapes and rise to impressive heights . The gigantic sculpted earthworks often took the shape of animals , birds , or writhing serpents . The function of the mounds is still under debate . Due to considerable evidence and surveys , plus the good survival condition of the largest mounds , more information can be obtained . </P>
an impressive feature of the hopewell culture was its
an impressive feature of the hopewell culture was its
Eastern Woodlands mounds
Eastern Woodlands mounds