Reask Stone B is a sandstone slab standing at the entrance to the oratory and is part of the ceallunach enclosure. This stone is 0.8metres in height, 0.4 metres wide and 0.2 metres thick. It is decorated with a large Latin cross with bifurcated terminals. Above the cross is horizontal bar also with bifurcated terminals and on the upper sides of the cross are inscribed two smaller crosses.