Lowerdark

The Lowerdark was the lowest realm of the Underdark.

Geography
Located 10 mi (16.09 km) below the surface of Toril. The Lowerdark was where even those who knew the Underdark loathe to go.

Abyss and rifts

 * Lorosfyr

Caverns

 * Cloakerhaven
 * Nuur Throth
 * Sharnlands

Lakes

 * Giant's Chalice

Settlements

 * Blessed Seahaven
 * Ch'Chitl
 * Deep Imaskar
 * Dupapn
 * Earth's End
 * Fluvenilstra
 * Oryndoll
 * Reeshov

Temples and shrines

 * Holy Mother Cauldron