Twenty Stones of Thruun

The Twenty Stones of Thruun was an arrangement of standing stones found in the isolated fishing village of Dougan's Hole in Icewind Dale. It comprised a score of vertical granite menhirs, aligned in a triangle with three equal sides, with a single stone placed in the center.

Rumors & Legends
The folks of Dougan's Hole maintained that the stones were arranged before their town was founded.

While no one knew the exact meaning of the word Thruun, some sages have connected it to mighty creature that lived in Icewind Dale in ages past, while others believed it was the name of a long-forgotten deity.