The author of the article suggests as propable that the graffiti of the Cheimaditida Lake in Macedonia belong to the society which has built the megalithic tombs in the area of Roussa (Thrace). If this is valid “we might suggest as a date the one proposed by D. Triantaphyllopoulos: the 9th-10th century B.C. the period, that is, to which the dolmens from Bulgaria and from the other group of NW Caucasus belong”. In the center of the village Pelka (Pelekanos) of Kozani county a twin menhir, bound with legends and primeval rituals, has survived. Such monumens must be protected by the Archaeological Service, since the antiquities smugglers relate them with hidden treasures.