Hvergelmir

At the centre of the cold is a spring, its name glossed as a bubbling, boiling spring. In Grímnismál Hvergelmir is the spring into which liquid drips from the stag Eikþyrnir, the source of all waters; Snorri adds that it lies in Niflheim and is full of snakes and the dragon Níðhöggr. The two Eddas count its rivers differently, a reminder that the waters of the beginning were never mapped one way.