Festarfjall

A eroded subglacial volcano.

A section of a small hyaloclastite hill is exposed in the costal cliffs. A dyke named Festi(ladder), evidently the feeder for Festarfjall, passes up through the basement and the Festarfjall sequence, branching towards the base of the lavas. The story say that Festi is a neckless of a woman-troll. 

Location: Near highway 427