The site of a Bronze Age barrow, which survives as a ditchless, gorse and fern covered bowl barrow with diameter of 12.0 metres and height of 1.4 metres.  It has several stones, some of them quartz, exposed on the mound.  A second barrow lies 50 metres to the northeast (PRN 0532.00).  The barrow is shown as a Tumulus on the 1870 1:2500 scale Ordnance Survey map.


Cronk ny Keeill Bouyr means the Mound of Keeill Bouyr (Mound of the Chapel of the Deaf).