Matusevich Fjord – a large fjord, which (37 km) juts deeply into the eastern shore of the island of Oktyabrskoy Revolyutsii, Severnaya Zemlya, and the Laptev Sea. Its width at the entry is 11 km. It is the most active area of iceberg formation. It was discovered in 1913 by the Arctic Ocean Hydrographic Expedition on icebreakers “Taymyr” and “Vaygach” under the command of Captain 2nd rank B.A. Vilkitsky and named after hydrographer, surveyor Lieutenant Colonel of the corps of hydrographers N.N. Matusevich. Later, in 1931, the fjord was examined and more accurately mapped by the Severozemelskaya (Northern Land) expedition led by G.A. Ushakov.