West Kennet Long Barrow © Patrick Taylor
The West Kennet long barrow was placed on the 1882 Schedule of Ancient Monuments. It now lies within the Avebury World Heritage Site. The scientific excavation took place in 1955–56.
Radiocarbon dates suggest that the monument was constructed in the period 3,700–3,600 BC, more than a millennium earlier than was thought in the 1960s.
