Duk history mound, Putrakalnis mound (unique object code MC 33310) in the territory of Ignalina district municipality, northwest of Duk history, Dukstas eldership. Available from highway 102 Vilnius-Švenčionys-Zarasai, turn left following the lake Parsvėtas to the left towards Salakas, and 100 m on the left in a southerly wet swamp before Lake Samani.
At the foot of the mound's southeast and southwest are the remains of an old settlement. 1958 on the mound, reconnaissance research was conducted by the Institute of History; 1966 At the southern foot of the mound, the 8 square meter area was investigated by the manager Vytautas Daugudis. In the cultural layer of 0.5-1.1 m thick fragments of molded, rough and polished ceramics, iron slag, charred remains of bell grains and burnt stone foundations were found.
The mound dates back to the 1st millennium. 2009 December 9th At the meeting of the Council of Immovable Cultural Heritage of the Department of Cultural Heritage, it was entered in the Register of Cultural Heritage.