Triple row at Cosdon uncharacteristically has a cairn and blocking stones at its upper end.
Eleven triple stone rows are currently known in Great Britain. They all include three separate, roughly parallel lines of stones. Compared with other types of row the amount of variety in form is much less although this may in part be explained by the relatively small number of examples. This said, however it is probably significant that all of the rows include small and medium sized stones, all are greater than 20m long and nine have no cairn at their upper or lower ends. The typical triple row is therefore more than 20m long, includes no or few large stones and has no direct funerary associations. Their distribution is very much focused on SW Britain with possible isolated examples in Sutherland and Shetland. Further information on the triple rows can be found here.
Distribution of triple rows.