At the end of September 1941, about 1,500 Jews from ghettos in Grodziec and Rzgòw were murdered in a forest about four kilometers northeast of Konin. The victims were buried in three mass graves. The murders were carried out by Sonderkommando Lange, who later that year were put in charge for the first Nazi extermination camp in Chelmno. In the spring of 1944, the bodies were dug up by a Special Commando (Sonderkommando 1005) whose task was to cremate the bodies and remove evidence of the murders.
Current status: Monument (2015).
Location: 52° 15' 11" N 18° 17' 43" E
Get there: Car.
Follow up in books: Gilbert, Martin: The Holocaust: A History of the Jews of Europe During the Second World War (1987).
The site consists of several smaller monuments. One that marks the executions and a couple of smaller ones that mark the cremation of the bodies. The monuments are not easy to find because they are located along a forest road and there are no signs at the site.