|Type||Subterranean Tier 1|
Imgangreth is the subterranean region directly beneath Grashakh. Imgangreth is filled with vast expanses of fungi forests, or fungals and many great waterways. One of these, the Umgaril River flows to the surface. The largest water body of Imgangreth is the sea of Cthorgo.
Some of the plant life in this Underdark realm is mammoth in size with 30' diameter mushroom caps and spore fields covering thousands of yards to name just a few.