🇺🇸 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.
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484 places in the atlas, 33 of them inscribed as UNESCO World Heritage.
🇺🇸 United States · Earthwork
Hopewell Middle Woodland 100–400 CE · Hopewell tradition
14.6 ha hilltop enclosure 2.4 km wall, 33 gateways.
Late Woodland Plum Bayou 650–1050 CE (Baytown-Coles Creek to Mississippian transition) · Plum Bayou (Baytown/Coles Creek, Late Woodland Arkansas)
Premier Late Woodland platform mound center: 18 mounds (tallest Mound A 12 m) enclosing 16 ha plaza with embankment ditch and astronomical causeway aligned to 1-degree solar solstice.
🇺🇸 United States · Earthwork
Mississippian 1000–1350 CE · Mississippian (Wickliffe phase)
Eight-mound Mississippian town 1000–1350 CE.
🇺🇸 United States · Earthwork
Middle Woodland Miller culture 100–600 CE · Miller (Woodland)
Isolated conical mound 25 ft/7.6 m high, 70 ft/21 m diameter, tallest extant Woodland mound in north Mississippi.
🇺🇸 United States · Earthwork
Hopewell 1–450 CE · Hopewell tradition
Largest hilltop enclosure: 40 ha with 67 gateways, Hopewell 1–450 CE, UNESCO 2023.
🇺🇸 United States · Earthwork
Hopewell Ceremonial Earthworks are a World Heritage Site in the United States preserving eight monumental earthworks constructed by the Hopewell tradition.
🇺🇸 United States · Earthwork
Formative to Mississippian (1500 BCE–1500 CE) · Woodland–Mississippian
Poverty Point Mound B Summit in Louisiana, West Carroll Parish, United States is a Formative to Mississippian (1500 BCE–1500 CE) earthwork attributed to Woodland–Mississippian.
🇺🇸 United States · Earthwork
Formative to Mississippian (1500 BCE–1500 CE) · Woodland–Mississippian
Cahokia Monks Mound South Terrace in Illinois, Collinsville, United States is a Formative to Mississippian (1500 BCE–1500 CE) earthwork attributed to Woodland–Mississippian.
🇺🇸 United States · Earthwork
Middle Woodland to Early Mississippian (Swift Creek–Cartersville) · Woodland (Swift Creek) / Early Mississippian
Moated Swift Creek town (300 BCE–650 CE) with 3 mounds and circular ditch on Etowah River, Georgia.
🇺🇸 United States · Earthwork
Middle Woodland Hopewell (100 BCE–500 CE) · Hopewell tradition
Unusual Hopewell (100 BCE–500 CE) enclosure complex at confluence of Paint Creek and North Fork, comprising nine geometric elements—four circles, two squares, crescents and parallel walls—covering 26…
🇺🇸 United States · Earthwork
Early Historic (regional) · Early Historic
Sacred Chaco Canyon Platform Outer — Chaco Canyon (55-26) at Chaco Canyon, United States is a Early Historic (regional) earthwork of the Early Historic tradition, built c.
🇺🇸 United States · Earthwork
Middle Woodland (Deptford–Weeden Island, 200 BCE–750 CE) · Deptford–Weeden Island (Florida Woodland)
Woodland plaza center (200 BCE–750 CE) with 6 mounds and Hopewell exotics on Crystal River estuary, Florida.
🇺🇸 United States · Earthwork
Early Woodland, Adena culture 1000 BCE–1 CE (peak 250–150 BCE) · Adena
Largest conical burial mound in North America (62 ft/19 m high, 240 ft/73 m diameter, 60,000 tons earth moved by basket) built by Adena peoples at Moundsville, WV.
🇺🇸 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
Iron Age (1200 BCE–500 CE) · Bronze Age
Serpent Mound Egg Enclosure in Mississippi Valley, United States is a Iron Age (1200 BCE–500 CE) earthwork attributed to Bronze Age culture.
🇺🇸 United States · Earthwork
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 · Earthwork
Early Woodland Adena · Adena
Adena conical mound (19.5 ft/6 m high, 95 ft/29 m diameter) preserved as Story Mound State Memorial, encircled by suburban Chillicothe but intact with original ditch.
🇺🇸 United States · Earthwork
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 · Earthwork
Pee Dee Mississippian 1150–1400 CE · Pee Dee culture
Pee Dee Mississippian platform mound 1150–1400 CE.
🇺🇸 United States · Earthwork
Hopewell 100–500 CE · Hopewell tradition
Effigy mound with 136 portrait pipes, Hopewell 100–300 CE.
🇺🇸 United States · Earthwork
Mississippian 1000–1250 CE · Mississippian (Cahokian)
Northernmost Mississippian walled town 1000–1250 CE.
🇺🇸 United States · Earthwork
Late Woodland to Mississippian 800–1200 CE · Late Woodland to Mississippian (Miller to Mississippian transition)
Five platform mounds (6–12 ft high) enclosing rectangular plaza 100×60 m at Owl Creek, Natchez Trace MP 243.
🇺🇸 United States · Earthwork
Marksville 0–400 CE · Marksville culture
Semicircular enclosure 530 m wall, Marksville Southern Hopewell 0–400 CE.
🇺🇸 United States · Earthwork
Period Bronze Age · Regional culture Americas-Mound
Quarry Gallery Americas 79 — United States Region 7 in United States Region 7, United States is a Neolithic earthwork with stratified deposits and regional significance.
