First, the town and railway station literately named "Hell" is named from a flat rock and has nothing to do with the satanic place. 64 places are registered with the name "Helvete" (Norwegian for Hell), not 300. Most of these places are generally difficult accessible geographic features such as canyons, potholes, caves, water falls, mines etc. and could serve as a warning to other travelers. It was also common to get to name your neighbors farm rather than your own. This might have led to some of the more creative names.