It was an avenue of two parallel lines of stones 25m wide and 2.5 km in length, which ran between the Neolithic sites of Avebury and The Sanctuary.

Excavations by Stuart Piggott and Alexander Keiller in the 1930s indicated that around 100 pairs of standing stones had lined the avenue, dated to around 2200 BC from finds of Beaker burials beneath some of them.

It is in the freehold ownership of the National Trust, and a scheduled monument in English Heritage guardianship.

[5] The West Kennet Avenue occupation site, discovered by Keiller in 1934 and re-excavated by Joshua Pollard and Mark Gillings from 2013–15, are the remains of Neolithic settlement activity.

[6] The more recent excavations recovered 16,399 pieces of worked flint with dating ranging from the Mesolithic to the Early Bronze Age.