Uummannaq is a 1,170 metres (3,839 ft) high, prominent, isolated mountain in northwestern Greenland, located on the small Uummannaq Island in the central part of the Uummannaq Fjord. It entirely dominates the landscape of the island, its base occupying its entire northern half. Formed of granite and basement gneiss, it is the most prominent mountain in the Arctic part of the west coast of Greenland.