They lived in Svartalfheim, the Land of the Dark Elves, in the north of Midgard, and below Nidavellir (Dark Home), where the dwarves lived.
According to Kevin Crossley-Holland[?], "No valid distinction though can be drawn between the dwarfs and the dark elves; they appear to have been interchangeable."
... than 2 miles wide and not atypical in shape, reminding early map-makers of the fingers of a hand.
The Finger Lakes from East to West:
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