🇺🇸 United States · Earthwork
Aztalan State Park
Mississippian 1000–1250 CE · Mississippian (Cahokian)
Northernmost Mississippian walled town 1000–1250 CE.
🇺🇸 United States · Earthwork
Angel Mounds State Historic Site
Mississippian 1000–1450 CE · Mississippian (Angel phase)
42 ha Mississippian walled town 1000–1450 CE.
🇺🇸 United States · Earthwork
Wickliffe Mounds State Historic Site
Mississippian 1000–1350 CE · Mississippian (Wickliffe phase)
Eight-mound Mississippian town 1000–1350 CE.
🇺🇸 United States · Earthwork
Parkin Archeological State Park
Mississippian / Nodena phase 1000–1541 CE · Mississippian Nodena
Moat-walled Mississippian Casqui town visited by de Soto 1541.
🇺🇸 United States · Earthwork
Marksville State Historic Site
Marksville 0–400 CE · Marksville culture
Semicircular enclosure 530 m wall, Marksville Southern Hopewell 0–400 CE.
🇺🇸 United States · Earthwork
Kincaid Mounds State Historic Site
Mississippian 1050–1400 CE (Kincaid phase) · Mississippian (Caborn-Welborn)
19-mound Mississippian town on Ohio River, 1050–1400 CE.
🇺🇸 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.
🇺🇸 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
Crystal River Archaeological State Park
Deptford–Hopewell–Weeden Island 500 BCE–1000 CE · Deptford / Hopewell Gulf Coast
Six mounds 500 BCE–1000 CE with Hopewell copper and stelae.
🇺🇸 United States · Megalith
Lepsius Mound Outlier — Mississippi Valley (Cahokia)
Early Bronze Age (3000–2000 BCE) · Medieval
Lepsius Mound Outlier in Mississippi Valley, United States is a Early Bronze Age (3000–2000 BCE) megalithic attributed to Medieval culture.
🇺🇸 United States · Megalith
Watson Brake Mound — Ohio Valley (Chillicothe)
Iron Age (1200 BCE–500 CE) · Iron Age
Watson Brake Mound in Ohio Valley, United States is a Iron Age (1200 BCE–500 CE) megalithic attributed to Iron Age culture.
🇺🇸 United States · Earthwork
Old Stone Fort
Middle Woodland 80–550 CE · Middle Woodland (Hopewell-related)
2.75 km stone-walled hilltop enclosure, solstice-aligned, 80–550 CE.
🇺🇸 United States · Earthwork
Turtle Mound
Late Archaic to late pre-contact St. Johns II (c.800 BCE–1565 CE, major 600–1400 CE) · St. Johns (Ais/Surruque ancestors)
Largest shell mound in mainland United States—St. Johns II / late prehistoric (600–1400 CE) oyster-shell midden-mound 30 ft high (≈15 m) extending 600 ft long × 180 ft wide (≈183×55 m), volume…
🇺🇸 United States · Earthwork
Fort Ancient Earthworks
Hopewell 1–450 CE · Hopewell tradition
Largest hilltop enclosure: 40 ha with 67 gateways, Hopewell 1–450 CE, UNESCO 2023.
🇺🇸 United States · Earthwork
Fort Hill Earthwork and Nature Preserve
Hopewell Middle Woodland 100–400 CE · Hopewell tradition
14.6 ha hilltop enclosure 2.4 km wall, 33 gateways.
🇺🇸 United States · Earthwork
Pinson Mounds State Archaeological Park
Middle Woodland 1–500 CE (Pinson phase) · Middle Woodland (Pinson Mound culture, Hopewell-influenced)
Largest grouping of platform mounds in Tennessee and largest Middle Woodland earthwork complex: 17 mounds (12 platform, burial, effigy) in 1,200-acre Forked Deer River park, with Saul's Mound (Sauls’…
🇺🇸 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
Mann Site
Middle Woodland Hopewell 100 BCE–500 CE · Hopewell tradition
Hopewell ceremonial village on Ohio/Wabash, 100 BCE–400 CE.
🇺🇸 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 · 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
Stubbs Earthworks
Middle Woodland Hopewell (100 BCE–200 CE) · Hopewell (Little Miami)
Massive Hopewell enclosure at confluence of Turtle and Little Miami Rivers, 700 m long irregular rectangular enclosure (12 ha) with 1.5 m embankments and deep 2 m exterior ditch, featuring timber…
🇺🇸 United States · Earthwork
Seip Earthworks
Hopewell 1–500 CE · Hopewell tradition
121-acre Hopewell circle-square with 335 m Great Circle and Seip-Pricer mound, UNESCO 2023.
🇺🇸 United States · Archaeological wonder
Acoma Pueblo (Sky City)
Pueblo III–present 1150 CE–present · Acoma (Keresan, ancestors Ancestral Puebloan/Zuni lineage)
Oldest continuously inhabited community in North America (since 1150 CE, oral history to 1100).
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🇺🇸 United States · Earthwork
Sellars Farm Mound and Village
Mississippian Middle Cumberland (1000–1300 CE) · Mississippian (Sellars phase)
Middle Cumberland Mississippian (1000–1300 CE) platform mound town on Spring Creek 3 km south of Cumberland River: single 5-m-high substructure mound (60×40 m) with refurbished summit structure and…