The decisions of the XXI Congress of the CPSU on its Miletky plan for 1959-1965 provide for further increase in coal production by 21-23%, mainly due to the development of the eastern regions of the country, including Kuzbass.Coal reserves of Kuzbass are concentrated mainly in the Prokopiev-Kiselevsky district, located in the south-western part of the basin. The strata of this region lie in the form of a number of synclinal folds with angles of inclination of wings, as a rule, 50°-70° In some cases they decrease to 40°, in others they increase to 90°; in the lock parts of folds the angles of dip of strata decrease to 10° Coal deposits of the region are opened by a large number of active mines and exploration wells, which allowed to trace quite accurately the deposits of the region at depths of more than 1000 meters.