Behind the main camp there were two more crematoria. Krems IV, and V. See 1943 photo of Krematorium IV below.
Scrolling around to the left you see the entirety of the Birkenau Little Wood on the Krematorium V side.
They were considerably smaller than II, and III but were still of sufficient size to kill many people each day. The area was cordoned off with barbed wire. Branches of leaves were woven thickly into the wire to deaden noises and shield the crematoria and gas chambers from view.




