Novaya Zemlya largest number of fjords in the Russian Federation. Novaya Zemlya separates the Barents Sea from the Kara Sea. The total area is about . The highest mountain is located on the Northern island and is 1,547 meters (5,075 ft) high. Compared to other regions that were under large ice sheets during the last glacial period, Novaya Zemlya shows relatively little isostatic rebound. Possibly this is indebted to a counter-effect created by the growth of glaciers during the last few thousand years. The ecology of Novaya Zemlya is influenced by its severe climate, but the region nevertheless supports a diversity of
Severnaya Zemlya USSR some features of the geography of Severnaya Zemlya that had been previously named in solidarity with German Communism saw their names altered to Russian or neutral-sounding names – e.g. Cape Unslicht becoming "Mys Peschanyy" and "Proliv Yungshturm" Yuny Strait. During the Cold War, the islands of Severnaya Zemlya continued to be studied by a team of geologists from NIIGA (the Scientific Research Institute of Arctic Geology) in St. Petersburg. Between 1948 and 1954 a comprehensive geological map was compiled under B. Kh. Egiazarov. Also more accurate maps were drawn by means of cartographic data gathered from aerial photography surveys.