Arctic Circle level, although in mountainous regions there is often no direct view of the true horizon. Only four million people live north of the Arctic Circle due to the severe climate; nonetheless, some areas have been settled for thousands of years by indigenous peoples, who today make up 10% of the region's population. Tens of thousands of years ago, waves of people migrated from eastern Siberia across the Bering Strait into North America to settle. The largest communities north of the Arctic Circle are situated in Russia, Norway and Sweden: Murmansk (population 307,257), Norilsk (175,365), Tromsø (71,295), Vorkuta (59,231) and Kiruna
Indigenous small-numbered peoples of the North, Siberia and the Far East (единый перечень коренных, малочисленных народов Российской Федерации). This register includes 46 indigenous peoples. Six of these peoples do not live in either the Extreme North or territories equated to it, so that the total number of recognised indigenous peoples of the North is 40. The Komi-Izhemtsy or Izvatas, a subgroup of the Komi peoples, are seeking recognition from the Russian government as a distinct indigenous people of the North. The Far North is the part of Russia which lies mainly beyond the Arctic Circle. However, this is the smaller part of the total territories inhabited by indigenous peoples. These territories