Cell block AEdit
The cell block has four cells, two to each side. The ones to the left each have five bunk beds in them which can be freely slept on. The two cells to the right contain a few bunk beds less than the other.
Cell block BEdit
Same layout as cell block A, again with some bunk beds in the cells. Here, two cells can still be closed.
Schematics - powder charge in the first Easy Locked cell to the left in block B
Taking items here counts as stealing, so if the Courier is caught, the Powder Gangers become hostile.
The cell blocks only appear in Fallout: New Vegas.