The point of reference to who was where we have them mentioned atWestonsupermare in particular at worlebury camp somerset
The geography of this area must be much changed from 3000yrs ago
From brean to bleadon toaxeto cheddar to wells to glastonbury we have many old burial mounds suggeting to me that the neolithic living on this raised plateau looked over the somerset levels which were possibaly uninhabitable.
The distance from south wales nowadays indicates that south gloucester being dobunni territory was around the river severn and that the mouth of the river and the levels mingle
The burial cairn at stony littleton is similar to other cairns in gloucester
Belas Knap is a neolithic chambered long barrow, situated on Cleeve Hill, near Cheltenham and Winchcombe, in Gloucestershire, England
With another cairn at the area behind Kelston nr Bath