The deer park wall at Fylingthorpe in North Yorkshire, which is about 5 miles SE of Whitby. Much of the original wall still exists and some of it is likely to be in much the same condition as it is now and largely unchanged since KIng Henry VIII dissolved the Abbey at Whitby immediately after 1536. The deer park was a part of the Abbey property. The wall is 3ft in thickness at the base and at the top around 2ft. A distinguishing feature of this wall are the regularly spaced stones in the form of a cross. These stones go right through the wall. They must have been difficult to place in the days before machinery. Some repairs have been carried out over the years.
Another feature of this wall is the top. For much of the top there is no evidence of how it was finished off. However, where the wall descends into the beck the character of the wall changes and the tops/copes are large flat slabs of stone.
Another wall close by has unusual large upright stones, all of which are the full width of the wall, and this wall is also likely to have been built at the same time.
This is the same wall, but in another field:- http://wallsandhedges.blogspot.com/2010/10/park-wall-historic-wall.html
Above and below - A medieval wall.
I repaired/rebuilt some of the lower part of this wall in the winter of 2020/2021