🇬🇧 United Kingdom · Earthwork
Tre'r Ceiri Hillfort Lleyn Peninsula
Iron Age (200 BCE–100 CE) · Ordovices
Mountain-top hut-village hillfort on Yr Eifl summit, intact curtain wall to chest height, excavated 1906/1956, views to Snowdonia and Ireland.
🇺🇸 United States · Earthwork
Tremper Mound and Earthwork
Hopewell 100–500 CE · Hopewell tradition
Effigy mound with 136 portrait pipes, Hopewell 100–300 CE.
🇬🇧 United Kingdom · Earthwork
Old Oswestry Hillfort Shropshire
Iron Age (800 BCE–43 CE) · Cornovii
Shropshire's most spectacular hillfort excavated by Varley 1939–40 atop hill with 3-circuit ramparts and ritual pits, view over Welsh Marches.
🇬🇧 United Kingdom · Earthwork
Whitehawk Camp
Early Neolithic (3650–3350 BCE) · Neolithic causewayed
Whitehawk Camp in East Sussex, South Coast, United Kingdom is a Early Neolithic (3650–3350 BCE) earthwork attributed to Neolithic causewayed culture.
🇺🇸 United States · Earthwork
Shrum Mound
Early Woodland Adena to Early Hopewell transition · Adena
Adena conical mound (20 ft/6 m high, 100 ft/30 m diameter) preserved in Campbell Park, Columbus — one of few surviving mounds in Ohio's capital city.
🇺🇸 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 · 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 Kingdom · Earthwork
Windmill Hill Causewayed Camp Wiltshire
Neolithic (3650–3000 BCE) · Early Neolithic / Peterborough
Avebury's northern causewayed camp excavated by Keiller 1925–29, 3650 BCE basal layer with Ebbsfleet ceramics.