The Halls of Scale and Bone
The Halls of Scale and Bone are the northernmost region of the World Below Zohlohrn. It is composed of large patches of Igneous and Metamorphic stone with some Sedimentary thrown in and one of the largest patches of the legendary Godstone under the world. The tracks of Igneous stone caverns and their accompanying magma tracks are referred to as the Halls of Scales while the Godstone patch and most of the northern stone caverns are referred to as the Halls of Bones. The Ma'a'Leth Tribe of Abyssal Demons traverse this region, looking to pick fights with red dragons.
The Bleeding Caverns
The Bleeding Caverns cut through the center of the World Below Zohlohrn. There are quite a few distinct areas within the region; patches of both Igneous and Metamorphic stone caverns within the rest of the Sedimentary stone caves. Inside the region, none care about names, but outside of it, the entire region is referred to simply as the Bleeding Caverns. The Ra'a'Kez Tribe of Abyssal Demons make the Bleeding Caverns their home.
The Brokenblade Verge
The Brokenblade Verge is the southernmost region of the World Below Zohlohrn. Primarily Sedimentary stone caverns broken by underground rivers and lakes, the Verge is a victim of the soft ground on the surface world. Despite the large patches of Metamorphic stone caverns, some of which even have their own names within the Verge, the whole of the region is known as the Brokenblade Verge to outsiders. The Ba'a'Mek Tribe of Abyssal Demons wanders this region endlessly.