🇺🇸 United States · Earthwork
Sloan Site
Paleo-Indian Dalton 8500–7900 BCE · Paleo-Indian Dalton (Sloan Dalton)
8,500 BCE Paleo-Indian cemetery, oldest in the Americas, 475 burials.
🇺🇸 United States · Ancient village
Edge of the Cedars State Park Museum
Pueblo II–III 850–1220 CE · Ancestral Pueblo (Virgin–Kayenta blend)
Pueblo II–III 100-room complex with restored 12 m kiva and largest pottery shard repository in Southwest.
🇺🇸 United States · Earthwork
Mount Royal Archaeological Site
St Johns IIc–Mississippian 1050–1562 CE (midden 3000 BCE onward) · St Johns (Timucua ancestors)
St Johns platform mound 6.7 m with 300 m causeway and 6000-year midden, contacted 1562 by French.
🇺🇸 United States · Ancient village
Una Vida (Chaco Canyon)
Pueblo I-III; early Bonito · Chacoan pioneer (Pueblo I) → classic Bonito
Earliest canyon great house (800–930 CE) at eastern mouth — L-shaped early Bonito 80-room great house with great kiva, petroglyphs and Fajada alignment, Chaco genesis type.
🇺🇸 United States · Earthwork
Lake Jackson Mounds Archaeological State Park
Fort Walton Mississippian 1050–1500 CE · Fort Walton (Apalachee) Mississippian
Mississippian chiefdom capital on Lake Jackson with 11 m platform mound and famed repoussé copper plates.
🇺🇸 United States · Earthwork
Shiloh Indian Mounds National Historic Landmark
Early to Middle Mississippian 1000–1350 CE · Mississippian (Shiloh phase)
Palisaded 8-mound Mississippi River town on Tennessee River, 1000–1350 CE.
🇺🇸 United States · Ancient village
Hungo Pavi (Chaco Canyon)
Pueblo II-III; Chacoan · Chacoan Ancestral Pueblo → McElmo
Chaco south-side great house (72 rooms, 1100 CE) with tower kiva, enclosed plaza and South Road segment — Bonito to McElmo transition across canyon.
🇺🇸 United States · Earthwork
Liberty Earthworks
Middle Woodland Hopewell 100–350 CE · Hopewell tradition
Hopewell square 320 m with corner circles and Liberty Mound, Chillicothe cluster component.
🇺🇸 United States · Earthwork
Rock Hawk Effigy Mound
Woodland–Archaic 1000 BCE–1000 CE · Woodland peoples
30-m quartz hawk effigy on Oconee River, paired with Rock Eagle.
🇺🇸 United States · Earthwork
Fort Walton Mound
Mississippian Fort Walton 1100–1550 CE · Fort Walton (Mississippian Pensacola variant)
Fort Walton culture temple mound on Choctawhatchee Bay, 1100–1550 CE.
🇺🇸 United States · Earthwork
Jaketown Site
Late Archaic–Poverty Point ca. 1700–1500 BCE · Poverty Point culture (Jaketown phase)
8-mound Poverty Point–related center, 1700–1500 BCE.
🇺🇸 United States · Earthwork
Newark Earthworks
Hopewell culture 100 BCE–500 CE · Hopewell (Adena descended, Algonquian? cohort)
Hopewell giant geometric enclosures marking 18.6-yr lunar cycle.
🇺🇸 United States · Earthwork
Winterville Mounds
Plaquemine Mississippian Coles Creek-Winterville 900–1450 CE · Coles Creek / Plaquemine
16.7 m truncated pyramid center of 23-mound plaza, 1200–1400 CE.
🇺🇸 United States · Earthwork
Seal Township Earthworks
Middle Woodland Hopewell 50–350 CE · Hopewell tradition
Scioto bluff Hopewell enclosure triplet (circle-square-irregular) 45 km south of Chillicothe core.
🇺🇸 United States · Ancient village
Wijiji (Chaco Canyon)
Pueblo III; late McElmo revival · Mesa Verde McElmo → Chaco East Wash
Late McElmo eastern great house (30 rooms, 1105–1115 CE) at Chaco Wash narrows — single-wing McElmo revival after main canyon collapse, with check dams.
🇺🇸 United States · Earthwork
Letchworth-Love Mounds Archaeological State Park
Woodland Weeden Island 200–800 CE · Weeden Island (Swift Creek)
14 m platform mound, largest Woodland mound in Florida, 200–800 CE.
🇺🇸 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
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
Anderson Mounds
Middle Woodland Hopewell–Adena 250 BCE–200 CE · Hopewell tradition (Adena antecedent)
Hopewell circular enclosure and Great Mound, 250 BCE–200 CE.
🇺🇸 United States · Earthwork
Barnes Works
Middle Woodland Hopewell 100 BCE–500 CE · Hopewell
Immense Hopewell enclosure 12 ha west of Bainbridge: square (280 m side) attached to circle (320 m diameter) via parallel walls, with ditch-and-embankment 1.5 m high.
🇺🇸 United States · Ancient village
Kin Klizhin (Chaco Outlier)
Pueblo II-III; Chaco outlier · Chacoan McElmo outlier / local Red Mesa synthesis
Southern Wash outlier great house (50 rooms, c.1085 CE) with L-plan and Chaco road causeway — wash-margin agricultural outlier illustrating Chaco emulation.
🇺🇸 United States · Earthwork
Hontoon Island Mounds
St Johns I–II 1000 BCE–1500 CE · St Johns (Mayaou Timucua)
Shell-midden island famous for 6 m buried wooden owl totem (600 CE) and snail-shell ridges.
🇺🇸 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 · Rock art
Painted Rock Petroglyph Site
Archaic through Hohokam 7500 BCE–1400 CE · Hohokam and Archaic–Patayan
4,000-petroglyph basalt concentration, 7500 BCE–1400 CE.