The base of the survey group of the All-Union Design and Survey and Research Institute of the Ministry of Energy and Electrification of the USSR named after S. Ya. Zhuk in the Yenisei region. There are drilling rigs on the ice of the river. Workers put the extracted cores into boxes. The members of the survey expedition carry out topographic surveys, seismographic surveys and water flow measurements. The chief geologist of the 8th complex prospecting expedition, TS Kaveev, the head of the expedition, NZ Gubkin, and the technical leader A. Ch. Lee, stand on the bank of the river and examine the drawing.