A monument of the Neolith Copper Stone Age is explored in the Dobrovsky District of the Lipetsk Region.

      Experts have already examined three burials harbouring remnants of two women and one man, who were about 30 years old. One of the anthropologists has assumed that an uraloid is buried there, that is a person belonging to a mixed race of the European and the Mongoloid ones, the head of the expedition Roman Smolyaninov explains.

      The skeletons are in graves with the head pointing to the east, and with bent or extended legs directed to the north.

      According to Roman Smolyaninov, in this area there were, most likely, living at once two nationalities, engaged in hunting and collecting.

      He has noted that the burial ground in Preobrazhenovka is the second Eneolithic monument of the Lipetsk Region. Another site was investigated in 2005 near Ksizovo Village of the Zadonsk District.