Noun
Penal servitude in a Russian or Soviet labour camp.
A Tsarist or Soviet labour camp.
Source: en.wiktionary.orgThe gulag inherited this approach from the katorga system. Source: Internet
In 1943, the term katorga works ( каторжные работы main) was reintroduced. Source: Internet
In the early decades of the Soviet Union (especially the 1930s and 1940s), the earlier katorga system of penal labour camps was replaced by a new one that was controlled by the GULAG state agency. Source: Internet
Prisoners sentenced to "katorga works" were sent to Gulag prison camps with the most harsh regime and many of them perished. Source: Internet