Devil's Thumb (, ) is a pinnacle-shaped, mountain in the Avannaata municipality in northwestern Greenland.
Geography Devil's Thumb is located in the central part of Kullorsuaq Island, an island in the northern part of Upernavik Archipelago, in Melville Bay, approximately to the north of the Kullorsuaq settlement.
It is a familiar feature for Arctic navigators, similar to the Melville Monument further north, but bigger.Geographical Items on North Greenland Encyclopedia Arctica 14
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