This passage grave is a small roofless tomb with engravings of overlapping sets of concentric circles. According to
www.megalithomania.com This motif simulates a comb-in-clay-type effect. This 'image' is often protrayed as representing a face or even an owl. Both of the backstones of the chamber have carvings but the lozenge pattern on one has almost disappeared.
www.megalithomania.com claims these engravings are similar to petroglyphs at Fuente de la Zarza, La Palma in the Canary Islands.
Nearby is a what is believed to be the roofstone of the tomb. It was also richly decorated with engravings however the elements have left a detrimental effect as these markings are now quite hard to see.