Which island is the largest and only permanently populated island of the Svalbard archipelago and is also home to the Gavrilovfjellet mountain?
Gavrilovfjellet: Gavrilovfjellet is a mountain in Sørkapp Land at Spitsbergen, Svalbard. Spitsbergen: Spitsbergen (formerly known as West Spitsbergen; Norwegian: "Vest Spitsbergen" or "Vestspitsbergen") is the largest and only permanently populated island of the Svalbard archipelago in northern Norway.
Spitsbergen