Mount Hotenow, known to the ancient dwarves as Glaurimm, was a volcano amid the Crags mountain range, situated to the northeast of the city of Neverwinter on the Sword Coast North, deep in Neverwinter Wood. It was home to a large population of fire elementals, warming the Neverwinter River to the point where it never froze over, even in the heart of winter (hence the city's name).
After its eruption, Mount Hotenow looked like a set of serrated teeth many described as a "door to the Nine Hells" (or the Elemental Chaos, according to others). A river made of pure elemental fire follows a serpentine path throughout Hotenow's interior and underneath the surrounding mountains and hills of the Crags.
In 1451, its eruption entirely destroyed the settlement of Thundertree, and the resultant earthquake and combination of smoke and lava destroyed much of Neverwinter, killing thousands.