🇺🇸 United States · Earthwork
Pollock Works Earthworks
Middle Woodland Hopewell (200 BCE–300 CE) · Hopewell
Hopewell enclosure pair on Scioto River terrace 9 km southwest of Chillicothe: large sub-square 160×140 m (3 ha) with 1.2 m embankment and interior ditch, conjoined at corner to 80 m diameter circle…