The Ancient Rakatan Keep was the name given to the largest region of the Tomb, a prison built by the Rakata species on the planet Belsavis. It was dominated by a massive Zedalus tree, with the Rakata facility that the Esh-kha termed Cave-Under-Tree located beneath it. The other, smaller regions of the Tomb were all accessible from the keep, which was a verdant valley heated by several magma rifts.