Rauvinheart caverns

The Rauvinheart caverns were an immense system of caverns and tunnels underneath the Rauvin Mountains in Luruar.

Geography
The Rauvinheart caverns were located underneath Dead Orc Pass and the mountains on either side of the pass.

Description
The caverns were heated by a geothermic source. The River Rauvin passed through the caverns and emerged at the southern mouth of Dead Orc Pass in a waterfall-filled area known as Rainbow Gorge. A number of entrances to the caverns were located in Dead Orc Pass. The caverns were home to creatures of the Underdark and fungi that served as food sources for the orcs that dwelt in the Rauvins.