Creation of an aeromagnetic map of the Baikal-Amur Mainline

April 1979. USSR. Chita Region. Checking a quantum aeromagnetometer at an airfield before the flight of the Vitim aeromagnetic party of the Western Geophysical Trust of the Main Geophysical Directorate of the Ministry of Geology of the RSFSR (Leningrad), creating an aeromagnetic map of the Baikal-Amur Mainline under construction. The exact date of the survey has not been established. Grigory Kalachyan/TASS