An inmate at Mauthausen-Gusen concentration camp is photographed near death and lying in his own filth after the camp was liberated by the 11th Armored Division, United States Army Central. Mauthausen-Gusen formed one of the first massive concentration camp complexes in the Reich, and were the last ones to be liberated by the Allies. Apart from the four main sub-camps at Mauthausen and nearby Gusen, more than 50 sub-camps of the complex were located throughout Austria and southern Germany. The two main camps, Mauthausen and Gusen I, were labelled as “Grade III” (Stufe III) camps, which meant that they were intended to be the toughest camps for the “Incorrigible Political Enemies of the Reich”. Mauthausen-Gusen concentration camp, Mauthausen, Upper Austria, Austria. 6 May 1945.