Russian Empire Bolsheviks followed in 1918. The administrative boundaries of European Russia, apart from Finland and its portion of Poland, coincided approximately with the natural limits of the East-European plains. In the North it met the Arctic Ocean. Novaya Zemlya and the Kolguyev and Vaygach Islands also belonged to it, but the Kara Sea was referred to Siberia. To the East it had the Asiatic territories of the Empire, Siberia and the Kyrgyz steppes, from both of which it was separated by the Ural Mountains, the Ural River and the Caspian Sea — the administrative boundary, however, partly extending into Asia on
Severnaya Zemlya less glaciated than the other islands of Severnaya Zemlya. Only about 30% of the island is covered by glaciers while the coastal plains have a sparse vegetation of moss and lichen. The Leningrad Glacier, Semyonov-Tyan-Shansky Glacier, Kropotkin Glacier, Mushketov Glacier and Aerosyomki Glacier are located in the interior of the island and do not reach the sea. "Ostrov Tash" is a small island located on Bolshevik's southern shore. "Lavrov Island" is located off the NE shore and "Ostrov Lishniy" off its northern tip. Komsomolets Island () is the northernmost island of the Severnaya Zemlya group in the Russian Arctic, and