The Delugian Mountains are sparsely inhabited, but are home to a few small towns, and a number of monasteries, schools, and other isolated spots. It is, most importantly, home to the Great Grove of Colossal Trees and sits atop a large section of Chull, an inhabited cave system; these are both treated as distinct settings. To the south is the region of Terrwin. Due to the extremely rough, mountainous terrain, the Delugian Mountains are culturally and often biologically distinct from the surrounding areas. There is also no central authority, nor anything more organized than small leagues or alliances. There are no major trade routes through the mountains.
The Delugian Mountains can be divided into several regions, roughly from the west (at the coast) to the southeast (at Crosspeak). These boundaries are essentially arbitrary and are provided only for convenience.
- Billagumbly Coast
- The Towers
- Stoneroot Gorge and the Malvorinian Academy