As dangerous as the terrain they are found in, the Sableye Caverns make up a seemingly endless maze of tunnels and rooms, some with deep drops that will leave the loved ones of the unwary with no corpse to morn. The pokèmon here tend can be quite massive and volatile, as this is a popular home for many aggressive rock types. Rumor has it there are Sableye deep within the dark caves, implying also that the gems they love to feast on may also be found in the depths.

Among the mountains is deep valley. The vast stream run off from the mountains above trap a layer of moisture along with the heat accumulated by day to create a tropical zone, filled with lush, jungle like plants. During the day the whole of the valley enjoys this atmosphere, however heat inversion ensures that nights within the very base are cold, while the upper reaches remain hot. As such, the base of the valley hosts more deciduous plant life. This area is popular with plant pokèmon and tropical species, though they do tend to stick to the upper reaches of the valley at night.