Dachau: camp and city after liberation These maps of the oldest SS concentration camp Dachau and a nearby mass grave were made at the camp by Marko Zupančič. He published these maps in the "first and hopefully last newsletter" by and for Slovenian partisans on June 1, 1945. This publication came a month after the camp's liberation by the US Army. In the aftermath of liberation, thousands of camp residents were compelled to remain there for several weeks until they could be deported.