https://www.opendemocracy.net/od-russia/ekaterina-loushnikova/outcasts-%E2%80%94-inmates-of-black-eagle
In Stalin’s time there were nearly a hundred GULag camps in Ivdel. Today, the maximum security penal colony FBU-IK 56 survives in their place. Ekaterina Lushnikova travelled there to speak to the inmates — some of Russia’s most hardened criminals.