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
Cape Unslicht Cape Unslicht Cape Unslicht (, "Mys Peschanyy") is a headland in Severnaya Zemlya, Russia. Stretching out northwards NW of the Akhmatov Fjord and east of the mouth of Mikoyan Bay, this headland is the northernmost point of Bolshevik Island. Cape Unslicht is one of the landmarks defining the limits of the Laptev Sea according to the International Hydrographic Organization. The Laptev Sea shore of present-day Severnaya Zemlya was discovered by Boris Vilkitsky in 1913 during the Arctic Ocean Hydrographic Expedition on behalf of the Russian Hydrographic Service, but he was unaware that there was a strait west of the cape