The first monument to be excavated in Serra da Aboboreira in 1978 as part of the archaeological excavations. A medium-sized dolmen with a small entrance to the east, marked by a doorway. Only four of its seven original pillars remain, identified by their laying pitches during the excavations. Besides a potential capstone fragment on top of the tumulus, two other fragments from pillars have been used to mark the location of the missing pillars.
Period: First half of the 4th Millennium BC (?)