Located thirty-seven miles west of Krakow, Auschwitz was the camp where Jewish people were killed and worked. This camp , out of all the rest tortured the most people. At the camp there was a place called the "Black Wall," this was where the people were executed . In March of 1941, there was another camp that started to be built. This second camp was called Auschwitz II, or Birkinau. It was located 1.9 miles away from Auschwitz I. People that were chosen to come to these camps were expelled from their homes. Their houses were destroyed for the purpose of building Birkinau. Birkinau had nine sub-units. They were separated from each other by electrically charged fences that lines their borders. In August 1942, the womens" section at Auscwitz I was moved to Birkinau. Nine hundred and ninety-nine women from Ravensbruck camp and other women from different camps joined them also. Birkinau now had over 6,000 women prisoners being held. In the town Monowitz, another camp w! as being built. This camp was called Auschwitz III, or Buna-Monowitz. Other camps that were located close to Monowitz were moved to Buna-Monowitz. The population of Birknau was the most densly populated out of all the camps. It also had the most cruel and bad conditions of all the camps in the complex. The prisoners at Birkinau mostly consisted of Jews, Poles , and Germans. There were a number of Gypsy and Czech Jew family camps located at Birkinau for a period of time also. In Birkinau, the gas chambers and the oven, where the bodies were burned operated at Auschwitz I. Birkinau and all the other sub-camps were mostly forced labor camps. The most recognized of the labor camps are, Budy, Czechowitz, Glenwitz, Rajsko, and Furstenarube. The prisoners here were worked to the point of death. Trains transported people to the camps, and violently forced them off the train. All of the people's property was left on the train also. They prisoners were sent into two different lines, one for women and the other for men.