Uummannaq Island () is a small ()
The island is separated from Nuussuaq Peninsula in the southwest by Sarqarput Strait in the southern arm of Uummannaq Fjord. In the east, the island is separated from the Salliaruseq Island by the wide Assorput Strait. To the north, the central arm of Uummannaq Fjord separates it from the large Appat Island and the skerries of Saattut.
Map of the island
Coast
thumb|View over Qasigissat Bay towards [[Nuussuaq Peninsula, the main arm of Uummannaq Fjord, and Illorsuit Island]]
The island has a very undeveloped coast, with a handful of small, rocky bays primarily in the southernmost, inhabited part. The only significant bay is Qasigissat () on the southwestern shore. The weakly indented Iterlak bay is located on the northwestern coast of the island. is the largest lake situated in the southern part of the island, at approximately .
Interior
thumb|Uummannaq Mountain: eastern wall in profile
The entire island is rocky, with the southern half progressively rising in altitude in the northern direction, towards the Uummannaq Twin Peaks mountain. The area south of the geographical center of the island is a plateau of folded granite hills, dotted with tiny ponds. The plateau falls into the surrounding waters with steep cliffs crevassed with couloirs. The northeastern coast under the walls of the mountain features a large cone of loose scree. Movement on the outskirts of the interior is restricted to mountaineering.
Uummannaq Mountain
thumb|left|Uummannaq Twin Peaks tower over the island
Uummannaq Mountain entirely dominates the landscape of the island, its base occupying its entire northern half. Formed of granite and basement gneiss, Deep chimneys fall to the south and the north from the col between the western and eastern summits. Its eastern wall has no significant depressions, falling in a uniform cliff into Assorput Strait between Uummannaq Island and Salliaruseq Island. Several daily helicopter flights link the island with the nearby Qaarsut Airport on Nuussuaq Peninsula, from where STOL connections are available to Upernavik, Sisimiut, Ilulissat and further to central and southern Greenland. Since then the ferry services of AUL are available only southwards from Ilulissat, operated with the remaining ship, M/S Sarfaq Ittuk.
The cargo/passenger boat Pajuttaat of Royal Arctic Line links Uummannaq with Upernavik. Individual transport and sightseeing boats can be chartered from the Uummannaq Tourist Service. The island is often visited by cruise ships, such as Norway's Hurtigruten.
Photographs
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File:Uummannaq-Salliaruseq.jpg|The port in Uummannaq town
File:Uummannaq-santa-claus-turf-hut.jpg|A restored traditional Greenlandic turf house serving the children of Denmark as the 'Santa Claus Castle',