The Prison

The Prison
The Prison is the central location of Season 3 and the first half ofSeason 4 of AMC's The Walking Dead. The prison set, as shown in the TV series, was located on the grounds of the Raleigh Studios Atlanta, in Senoia, Georgia

Pre-Apocalypse
The Prison is revealed to be in close proximity of Newnan, Georgia by Merle Dixon after Maggie divulged her group's location. Philip Blake also mentions it's north of Highway 34. One of the prisoners, Tomas, explains what happened to The Prison at the beginning of the outbreak. A large rebellion and riot erupted and chaos reigned. He and the other prisoners from the cafeteria were locked inside by one guard, and this guard promised his return and handed the prisoners a revolver, but this never occurred, thus leaving them locked inside the cafeteria with all The Prison's stock of food. This kept them alive for almost 10 months. It can be presumed that since a lot of people died during the rebellion, most of them began to reanimate, managing to kill the rest of the surviving prisoners and guards during the chaos.