🇺🇸 United States · Earthwork
Turner Group Earthworks
Middle Woodland Hopewell 100–400 CE · Hopewell tradition (Turner phase)
Hopewell enclosure-mound group source of copper effigies and mica tombs on Little Miami terrace.
🇺🇸 United States · Earthwork
Miamisburg Mound
Early Woodland Adena 1000–200 BCE · Adena
Second-largest conical mound in Ohio (65 ft/20 m high, 877 ft circumference) and tallest surviving Adena mound, preserved at Miamisburg Mound State Park.
🇺🇸 United States · Earthwork
Enon Mound
Early Woodland Adena 1000–400 BCE · Adena
Large Adena conical mound (38 ft/11.5 m high, 140 ft/43 m diameter) preserved in Indian Mound Reserve, Enon. One of the best-preserved Adena mounds in Ohio, surrounded by former enclosures now plowed.
🇺🇸 United States · Earthwork
Story Mound
Early Woodland Adena · Adena
Adena conical mound (19.5 ft/6 m high, 95 ft/29 m diameter) preserved as Story Mound State Memorial, encircled by suburban Chillicothe but intact with original ditch.
🇺🇸 United States · Earthwork
Shrum Mound
Early Woodland Adena to Early Hopewell transition · Adena
Adena conical mound (20 ft/6 m high, 100 ft/30 m diameter) preserved in Campbell Park, Columbus — one of few surviving mounds in Ohio's capital city.