The Vile Peaks

From FFTogether

The Vile Peaks is a location on Cocoon in Final Fantasy XIII that is only visitable in Chapter 4. A mountainous range of scrap metal, Lightning and her companions crash land here after escaping from Lake Bresha. The various junk and scrap metal were taken from Gran Pulse from the War of Transgression, and various Pulse armament's can also be found here still functioning. Monsters can be also found stalking the wilds.

In-Game Datalog

The Vile Peaks are built of debris—the castoffs of material originally lifted up from Pulse by the fal'Cie and used in the construction of Cocoon and later additions of landmass. These towering piles of refuse now serve as lairs for all manner of beasts, including lowerworld mechanical horrors that, intentionally or not, hitched a ride with what became the building blocks of Cocoon. The Sanctum military endeavors to clear out the dangerous inhabitants of the peaks, but some say they leave the job half done to discourage civilians from entering the lowlands.