Severnaya Zemlya any traces of land to the north of the wide strait between the Kara Sea and the Laptev Sea that they navigated. The archipelago was not put on the map until the 1913–1915 Arctic Ocean Hydrographic Expedition of icebreakers "Taimyr" and "Vaigach". The chief organiser and first captain of the Vaygach was officer Aleksandr Vasiliyevich Kolchak of the Imperial Russian Navy. The expedition was privately financed and was launched in 1910, being led by Boris Vilkitsky on behalf of the Russian Hydrographic Service. This venture accomplished its goal of exploring the uncharted areas of the continental side of the Northern
Novaya Zemlya lost more than three-fourths of the merchant ships committed to the convoy — more than one fourth of the losses to American shipping in all convoys to northern Russia. The destruction of PQ-17 significantly affected the people dependent on supplies carried by the ill-fated merchant ships. Karlo Stajner, a Gulag prisoner in Norilsk in 1942, wrote “the German cruiser’s attack on Novaya Zemlya and the sinking of the food transports had catastrophic consequences…the population was left without provisions…supplies in the warehouses of Norilsk [were] distributed among the NKVD, the guards, and the few free civilians that lived in the town.”