A pillow mound, identified through aerial reconnaissance (16.11.2010), is located on the northern coast of Dinas Island.
The mound is cigar-shaped and measures some 20m long (aligned NE-SW) and 4m-5m wide with a height of 0.5m. It is not obviously ditched though it was visited at a time of dense bracken overgrowth. The mound lies on a moderately steep north-east facing slope between trackways, at a point just before the ground falls away steeply to the cliff-tops below, in rough pasture enclosed by abandoned field banks. It appears to be undisturbed and a well-preserved example of its type.

David Leighton, RCAHMW, 17 July 2013