Wikipedia
Ozerlag
Ozerlag was an MVD special camp (osoblag N 7, osoby lager N 7) in the Soviet GULAG labor camp system for political prisoners. It was established in 1948 near Taishet and included a chain of camp sites (lagernye punkty) along the Baikal-Amur Mainline branches constructed by the inmates, up to Bratsk and later further to Ust-Kut.