Moharr is an inland saltwater lake. The unusual water salinity, or sea water, of the lake is a product of the Fihrgrell Cap. As this glacier melts, its salty waters flow down the Moredhel valley joining with fresh waters streams and runoff until emptying into the Moharr lake.

In the Moredhel War (1000 - 1006), refugees of Gatiranda and fleeing soldiers of the Niratar Theocracy were forced back towards the lake. Rather than becoming slaves of the Khazarkars, several hundred of them threw themselves into the lake where they drowned. Some of these became undead types like drowned ones and salt mummies.