The first monument to be excavated in Serra da Aboboreira in 1978 during the archaeological excavations. A medium-sized dolmen with a small entrance east, marked by a threshold. Only four of its seven initial pillars remain, identified by their laying pitches during the excavations. A possible fragment of a capstone, which remains on top of the tumulus, in addition to two other fragments of pillars were used to mark the location of the missing pillars.
Period: First half of the 4th Millennium BC (?)