🇺🇸 United States · Earthwork
Hopeton Earthworks
Middle Woodland Hopewell 100 BCE–500 CE · Hopewell tradition
Hopewell 22 ha circle-square with 321 m Great Circle, UNESCO 2023 unit-of-measure type-site.
🇺🇸 United States · Archaeological wonder
Aztec Ruins National Monument
Pueblo II–III 1115–1287 CE (Chacoan 1120–1140; Mesa Verde 1200–1287) · Ancestral Puebloan (Chacoan then Mesa Verdean)
Misnamed 12th-century Great House built by Chacoan Ancestral Puebloans (Aztec West, 400 rooms, 3 storeys) and later occupied by Mesa Verdeans: E-shaped pueblo with Great Kiva (14.6 m diameter,…
🇺🇸 United States · Buried city
Cahokia Mounds
Emergent Mississippian to Stirling phase · Mississippian (Illinoian)
Largest Mississippian centre (650–1400 CE) with 120 mounds including Monks Mound (30 m, 1000x700 ft base, largest earthen platform north of Mexico).
🇺🇸 United States · Archaeological wonder
Chaco Culture National Historical Park
Pueblo II–III 850–1250 CE (Chacoan fluorescence 1020–1140) · Ancestral Puebloan (Anasazi) / Chacoan
Chacoan canyon with 15 monumental Great Houses (Pueblo Bonito 650 rooms, 35 kivas) and engineered roads, built 850–1150 CE by Ancestral Puebloans as ritual and trade center for San Juan Basin,…
🇺🇸 United States · Archaeological wonder
Cliff Palace
Pueblo III 1190–1280 CE (Ancestral Puebloan florescence) · Ancestral Puebloan (Anasazi, Pueblo III)
Largest cliff dwelling in North America: 150 rooms, 23 kivas, 128–150 inhabitants in alcove 88 m deep, 27 m high below mesa top, with coursed sandstone masonry, tower structures and painted plaster,…
🇺🇸 United States · Earthwork
Hopewell Culture National Historical Park (Mound City Group)
Hopewell 1–500 CE (Middle Woodland, peak 100–400 CE) · Hopewell tradition (Scioto Hopewell)
Finest Hopewell enclosure: 13-acre (5.3 ha) flat-topped earthen-walled enclosure (1,211 m perimeter, 1–1.8 m high) near Scioto River enclosing 24 conical, elongated and effigy mounds.
🇺🇸 United States · Earthwork
Monks Mound
Mississippian 900–1200 CE (peak 1050–1200) · Mississippian (Cahokia)
Largest earthen structure in the Americas north of Mexico and centerpiece of Cahokia Mounds State Historic Site.
🇺🇸 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
Poverty Point (Monumental Earthworks of Poverty Point)
Late Archaic 1700–1100 BCE (peak 1500–1200 BCE) · Poverty Point culture
Late Archaic earthwork complex (1700–1100 BCE) with six concentric C-shaped ridges (1.2 km outer diameter) and six mounds, including 22 m-high Mound A – one of largest Archaic earthworks in North…
🇺🇸 United States · Archaeological wonder
Taos Pueblo
Ancestral Pueblo to historic 1000 CE–present (Hlauuma founded c.1000–1450 CE) · Taos Pueblo (Tiwa language, Northern Tiwa; ancestors Ancestral Puebloans)
Living Native American community and UNESCO World Heritage Site (1992) inhabited continuously for >1,000 years: two multi-storey adobe complexes Hlauuma (north house) and Hlaukwima (south house) up…