🇺🇸 United States · Earthwork
Moundville Archaeological Park
Mississippian 1000–1450 CE, apogee 1200–1350 CE · Mississippian (ancestral Choctaw/Chickasaw)
29-mound plaza center with grand chief's platform mound above Black Warrior River.
🇺🇸 United States · Earthwork
Toltec Mounds Archeological State Park
Late Woodland – early Mississippian, Plum Bayou 650–1050 CE · Plum Bayou (aboriginal ancestors of Quapaw? Coles Creek related, not Caddo Mississippian)
Best-preserved Plum Bayou-culture platform-mound center (650–1050 CE) – 18 mounds (two tallest 15 m and 12 m) arranged geometrically around rectangular plazas and an earthwork embankment with…