The majestic program of building communism in our country, outlined by I. V. Stalin in his historic speech at the pre-election meeting of voters of the Stalin electoral district of Moscow on February 9, 1946, requires the development of new reserves of industrial raw materials for its implementation, among which iron ores stand almost first. Therefore, it is natural that the new Angara-Pitsky iron ore basin, discovered in 1946, in which the Nizhne-Angarskoye deposit is so far the largest and most explored, acquires great significance.