Polyarnaya Sova ('Arctic Owl') prison

The Federal Governmental Institution — penal colony No. 18 of the Federal Penitentiary Service of Russia in Yamalo-Nenets Autonomous Okrug, commonly known as the Polar Owl (Polyarnaya sova), is a Russian prison located on the bank of the Sob River near the Polar Urals in the urban-type settlement of Kharp. It is one of the seven supermax ("special regimen", in Russian terminology) corrective labor colonies operated by the Federal Penitentiary Service for convicts sentenced to life imprisonment in Russia. In addition to special regimen it has sections with common and strict regimens.

Prison data from Wikidata (CC0). Summary from Wikipedia (CC BY-SA).