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Construction of the Baikal-Amur Mainline
February 1-15, 1976. USSR. Yakut ASSR. Surveyors at the construction of the portal of the Nagorny tunnel under the Stanovoy Range in the Neryungri District on the Bamovskaya-Tynda-Berkakit-Ugolnaya section of the Baikal-Amur Mainline. The exact date of the survey has not been established. Viktor Marikovsky/TASS