Rock Carvings on the North York Moors

Along the western edge of Warren Moor there runs a substantial ditch and dry stone wall known as the Park Dyke, originally forming part of the boundary wall of a medieval hunting park.

 It has been suggested that part of the Park Dyke might incorporate an earlier (possibly Bronze age) ditch and bank earthwork topped with large stones, which were incorporated into the later dry stone walling.

One of the larger stones has two unusual ring marks (date unknown) carved on its surface, the upper ring having a small central cup while the lower ring does not. 

This stone was first reported by R. Hayes and R. Close (YAJ Vol 41, P171. 1964) and also noted in a Booklet by Stanhope White (1987).

During a visit to Warren Moor (Sept 96) a similar ring mark was noted on a stone in another section of the wall. 

These marking may not be prehistoric, instead being part of a medieval boundary marking system.