Severnaya Zemlya broader Shokalsky Strait Bolshevik Island from October Revolution Island. Both straits connect the Kara Sea in the west with the Laptev Sea in the east. This archipelago encloses the northern limits of the Kara Sea on its western shores, together with Novaya Zemlya, located roughly to the southwest. The big rivers Ob and Yenisei, among others, flow from the south into this marginal sea area of the Arctic Ocean, with their abundant waters contributing to a climate with relatively high precipitation despite the prevalent extreme cold temperatures of the high latitude. The Laptev Sea, where the mighty Lena River steadily
Severnaya Zemlya Glacier on the island of October Revolution with its terminus at Matusevich Fjord. October Revolution, with seven glaciers, is the island with most individual glaciers in Severnaya Zemlya. Next are the islands of Bolshevik with six, Komsomolets with four, Pioneer with two and Schmidt Island with one. The largest glacier is the Academy of Sciences Glacier in Komsomolets, which is also the largest ice cap of Russia —a and thick ice dome reaching above sea level covering about two-thirds of the surface of the island. October Revolution Island (, "Ostrov Oktyabrskoy Revolyutsii") is the largest island of the Severnaya Zemlya