Jon Seligman, Paul Bauman, Richard Freund, Harry Jol, Alastair McClymont, and Philip Reeder
The Ponar-Paneriai base, the main extermination site of Vilna-Vilnius, began its existence as a Red Army fuel depot in 1940. After Nazi occupation of the city in 1941 the Einsatzgruppen and mostly Lithuanian members of the Ypatingasis būrys used the pits dug for the fuel tanks for the murder of the Jews of Vilna and large numbers of Polish residents. During its operation, Ponar was cordoned off, but changes to the topography of the site since the Second World War have made a full understanding of the site difficult. This article uses contemporary plans and aerial photographs to reconstruct the layout of the site, in order to better understand the process of extermination, the size of the Ponar base and how the site was gradually reduced in size after 1944.