After the search the bodies were stacked on old grid railroad tracks to be burned. They used to bury them but they ran out of ground. The gas chambers were then cleaned and readied for the next group of prisoners. There is no documentary evidence that Treblinka was an extermination center. In fact, contemporary records suggest that the camp had a very different purpose.
Photos suggest that it was actually a transit camp.
Also the camp's burial area quite obviously appears too small to contain the hundreds of thousands of bodies supposedly buried there. The generally accepted idea was that hundreds of thousands of Jews were killed at Treblinka in gas chambers with poisonous exhaust from engines. As the Allied forces got closer in the fall of 1943, evacuation of the camp began. Orders were given to destroy the camp so that no traces of it's existence remain. A farm was built over the site of Treblinka and a Ukrainian was selected to run it.