Sevzheldorlag
Komi Autonomous Soviet Socialist Republic, Russia · built 1938
Sevzheldorlag (also Sevzheldorstroy, Northern Railway ITL) was a penal labor camp of the GULAG system in the USSR. The full name was -, Northern Railway Corrective Labor Camp of NKVD. Established on May 10, 1938 from subcamps of Ukhtpechlag, because of the sharp increase of the convicts due to the Great Purge. On July 24, 1950 it was merged with North Pechora ITL (Sevpechlag) to make the Pechora ITL (Pechorlag). The camp was at its largest in January 1941 with 84,893 inmates. The main operation was railroad construction. The sites of the camp were within Komi ASSR, East Siberia: at Kotlas railway station, Knyazhpogost settlement (including headquarters), and Zheleznodorozhny settlement (now the town of Yemva).
Prison data from Wikidata (CC0). Summary from Wikipedia (CC BY-SA).