Wikipedia
Bamlag
Baikal Amur Corrective Labor Camp (Bamlag) was a subdivision of GULAG which existed during 1932-1948. Its administration, headed by Naftaly Frenkel (1933-1938), was headquartered in the settlement of Svobodny, Amur Oblast. Its main activity was construction of the Baikal Amur Mainline and secondary railroad branches. Its peak headcount was about 201,000 (1938). In 1938 it was dismantled into several camps.