Great Worm Cavern

The Great Worm Cavern was the traditional ancestor mound of the Great Worm Tribe of Uthgardt in the North. It was dedicated to the Great Worm beast totem.

Geography
It lay at the base of a mountain in the Spine of the World range, in the Valley of Khedrun.

The caverns were part of a vast underground complex. Tunnels connected to other parts of the Underdark, such as lost Gauntlgrym

Description
Inside the biggest cavern was the ancestor mound itself, a large altar mound shaped like a great spiraling winged snake, which was the Great Worm.

Inhabitants
The central cavern was the home of Elrem the Wise, shaman of the Great Worm Tribe, potentially Uthgar's living son, and a great worm.