Hiya Chris,
This may go some way to explain the recent origins of the Wheeldale stones.
" On the 11th October 1711, the justices of the peace sitting at Northallerton ordered that guide posts be erected at all cross roads"
Stanhope White
There are many parish boundaries and trackways on the moors that utilise lines of barrows or stones. This to me implies that the boundaries may a 'fossil record' of prehistoric tribal boundaries.
A good example of this can be seen with the Whitby Strand parish boudary that runs via low Woof Howe-High Woof Howe- Lilla Howe- Louven Howe -Ann Howe-Foster Howes-Robbed Howe-tumulus-Breckon Howe.
cheers