The mountain lies on the west side of Vágar close to the village of Gásadalur.
Árnafjall towers to a height of 722 metres to the north, and Eysturtindur to the east is 715 metres high.
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A more likely explanation is that Gásadalur (Goose Valley) is named after the wild geese, which from ancient times have travelled to the valley.
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There is a story that the village was named after a woman called Gæsa, who came from Kirkjubøur.