Silbury Hill
Avebury Silbury Hill · Europe's Largest Artificial Mound
Late Neolithic 2400–2300 BCE·Late Neolithic Britons (Grooved Ware)·🇬🇧 Wiltshire, United Kingdom
About
About Silbury Hill
Tallest prehistoric artificial mound in Europe: 39.3 m high, 160 m diameter base, 30 m flat top, volume 248,000 m³ chalk rubble and soil stepped construction c.2400 BCE completed 2300 BCE – unexplained purpose unlike burial mounds. Part of Stonehenge, Avebury and Associated Sites World Heritage. Roman finds atop but no burial. Leary fatal tunnel 1776 damaged; 2007 English Heritage stabilization after collapse.
Why it mattersLargest Neolithic artificial mound in Old World; anomalous non-funerary monument; engineering precedent to pyramids
Open questions
Mysteries & theories
Mysteries
- 01Purpose without burial chamber – platform vs cenotaph vs memory monument
- 02Construction organization requires chiefdom labor calculus
Theories
- 01Seasonal solar observatory platform thesis
- 02Fertility goddess belly mound or lineage monument
Theories are interpretations, not findings. The seal above tells you how much scholarly weight the place carries.
History
How it came to be
- Built
- c.2400 BCE initiated; c.2300 BCE final capping
- Period
- Late Neolithic 2400–2300 BCE
- Culture
- Late Neolithic Britons (Grooved Ware)
- Purpose
- Unknown: maybe solar platform, territorial mark, ritual cenotaph – no burial
- Abandoned
- c.2300 BCE completed then left
- Rediscovered
- 1776 Cornwall tunnel, 1968 Atkinson tunnel, 2007 stabilization
- Excavation
- Excavated
2400 BCE
Ditch quarry begins, first small mound
2375 BCE
Middle hill add clay buttress
2300 BCE
Final chalk capping 39 m high
2007
EH collapse repair and infill
On the ground
Structures & features
51.4157° N · 1.8574° W · 30 m · 3 mapped features
Silbury Summit
earthwork summit30 m flat summit platform - ritual stage
51.4159° N · 1.8575° WSilbury Ditch (quarry)
ditch5.6 m deep ring ditch source of chalk, now silted, encircles base
51.4153° N · 1.8572° WRoman Platform atop
foundationRoman surface with 100+ coins and posts - later reuse
51.4158° N · 1.8574° W
Gallery