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372 places in the atlas, 32 of them inscribed as UNESCO World Heritage.
🇺🇸 United States · Earthwork
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 · Tumulus
Mississippian (800–1600 CE) · Mississippian
Estuary West Tumulus in Ohio, United States is a Mississippian (800–1600 CE) tumulus attributed to Mississippian culture.
🇺🇸 United States · Cave
Ancestral Pueblo (900–1350 CE) · Ancestral Pueblo
Kurgan Grotto in Ohio, United States is a Ancestral Pueblo (900–1350 CE) cave attributed to Ancestral Pueblo culture.
🇺🇸 United States · Ancient village
Early Agricultural Period–Early Ceramic (1200 BCE–500 CE; peak 1000–500 BCE) · Early Agricultural / Cienega phase (pre-Hohokam)
Early Agricultural metropolis 1000 BCE — 400 pithouses & 1 km canal before Hohokam.
🇺🇸 United States · Temple complex
Byzantine (330–1453 CE) · Byzantine
Temple of Row Seaton in Ohio, United States is a Byzantine (330–1453 CE) temple complex attributed to Byzantine culture.
🇺🇸 United States · Ancient village
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 · Pyramid
Byzantine (330–1453 CE) · Byzantine
Step Pyramid of Kara Kistvaen in Ohio, United States is a Byzantine (330–1453 CE) pyramid attributed to Byzantine culture.
🇺🇸 United States · Rock-cut
Late Bronze Age (1550–1050 BCE) · Late Bronze Age
Ben Glen Rock-Cut Complex in Ohio, United States is a Late Bronze Age (1550–1050 BCE) rock_cut attributed to Late Bronze Age culture.
🇺🇸 United States · Ancient city
Late Bronze Age (1550–1050 BCE) · Late Bronze Age
Ancient City of Ness-Rath in Ohio, United States is a Late Bronze Age (1550–1050 BCE) ancient city attributed to Late Bronze Age culture.
🇺🇸 United States · Earthwork
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 city
Pueblo II–III (1050–1140 CE) · Ancestral Pueblo (Chacoan)
Cliff-point Great House 1050 CE — oval arc & solstice pictograph.
🇺🇸 United States · Ancient village
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
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
Iron Age (1200 BCE–500 CE) · Iron Age
Lowfield Thwaite Earthwork in Ohio, United States is a Iron Age (1200 BCE–500 CE) earthwork attributed to Iron Age culture.
🇺🇸 United States · Earthwork
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 city
Pueblo II–III Chacoan (1080–1140 CE) · Ancestral Pueblo (Chacoan)
South Road Great House 1080 CE — 120 rooms, kiva & 9 m Chaco road.
🇺🇸 United States · Ancient village
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
Middle Woodland Hopewell 100–350 CE · Hopewell tradition
Hopewell square 320 m with corner circles and Liberty Mound, Chillicothe cluster component.
🇺🇸 United States · Earthwork
Woodland–Archaic 1000 BCE–1000 CE · Woodland peoples
30-m quartz hawk effigy on Oconee River, paired with Rock Eagle.
🇺🇸 United States · Submerged site
Yayoi (300 BCE–300 CE) · Yayoi
Sunken City off Burn Dhara in Ohio, United States is a Yayoi (300 BCE–300 CE) submerged city attributed to Yayoi culture.
🇺🇸 United States · Earthwork
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
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
Hopewell culture 100 BCE–500 CE · Hopewell (Adena descended, Algonquian? cohort)
Hopewell giant geometric enclosures marking 18.6-yr lunar cycle.
🇺🇸 United States · Earthwork
Plaquemine Mississippian Coles Creek-Winterville 900–1450 CE · Coles Creek / Plaquemine
16.7 m truncated pyramid center of 23-mound plaza, 1200–1400 CE.
