the west kennet long barrow.
the west kennet long barrow. built by pastoralist communities shortly after the introduction of agriculture to britain from continental europe. they form part of an architectural tradition of long barrow building widespread across neolithic europe, although the barrow belongs to a localised regional variant of barrows known as the cotswold-severn group. they are a cluster of around thirty such barrows centring on avebury in upland wiltshire.