The Manx Museum and National Trust plaque next to the remains of the tomb says:
BALLAFAYLE CAIRN
REMAINS OF NEOLITHIC BURIAL SITE, 2000 TO 1500 B. C. WEDGE SHAPED CAIRN,
CONTAINING MANY STONES FUSED BY HEAT.
BOUNDED BY DRY-STONE WALLING ON ONE SIDE. CREMATED BURIALS FOUND IN CAIRN.
CONCAVE BANK WITH STANDING STONES ON
THIS SIDE* OF CAIRN BORDERS A PAVED
FORE-COURT.
EXCAVATED 1926
* The western side.