Mayak, Nuclear facility in Ozyorsk, Russia.
Mayak is an industrial site in the Southern Urals that includes reactors, chemical plants and facilities for spent fuel reprocessing. The entire complex sits in the closed city of Ozyorsk and handles used fuel elements for Russia's atomic energy sector.
The facility began work in 1948 as the first Soviet plutonium production site and was built under difficult conditions by over forty thousand Gulag prisoners. A serious accident occurred in 1957 and created a zone of radioactive contamination across several hundred kilometers through the eastern Urals.
The secrecy surrounding Mayak's operations led to the development of a closed city culture, where residents lived under strict access control and special privileges.
The entire area around the facility remains off limits to visitors as Ozyorsk is a closed city that requires special permission for entry. The site continues to employ around fourteen thousand workers in various technical and industrial roles.
The 1957 Kyshtym disaster at Mayak created a 300-kilometer radioactive trace across the Eastern Urals, affecting 270,000 people in surrounding communities.
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