The presentation builds upon the concept of Long Distance Alignments, published both in the works of John Poulter and in an article in Current Archaeology (May 2016) written jointly by Rob Entwistle and John Poulter.

Presenting new work not previously published, the presentation starts with a recap of the characteristics of Long Distance alignments as they have so far emerged, including the role of Roman roads in preserving them, and the apparent frequent use of Pythagorean angles in laying them out.  

Two Long Distance Alignments are examined initially: firstly one in the Weald that governs the route of two Roman roads, then secondly one that runs between Silbury Hill and Bath. This latter alignment raises the possibility that some Long Distance Alignments may have served as boundaries in early Roman times, in this case possibly marking the limit of territories administered by the shadowy but important figure of King Cogidubnus (or Togidubnus), king of the Regnenses or Regni immediately after the Roman conquest of AD43. The findings support the view (hinted at by the 1st century writer Tacitus) that this client kingdom may have reached well beyond the heartland of Chichester and Silchester to include Bath and substantial areas associated with the Durotriges as far as the River Exe.

Long distance alignments in southern Britain: strategic planning or boundaries?