geological survey, siberia

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Surveys of the Yakut highway - the section from Bomnak to the Uchura River, 1913
Surveys of the Yakut highway - the section from Bomnak to the Uchura River, 1913
Surveys of the Yakut highway - the section from Bomnak to the Uchura River, 1913
Surveys of the Yakut highway - the section from Bomnak to the Uchura River, 1913
Surveys of the Yakut highway - the section from Bomnak to the Uchura River, 1913
Surveys of the Yakut highway - the section from Bomnak to the Uchura River, 1913
Surveys of the Yakut highway - the section from Bomnak to the Uchura River, 1913
Surveys of the Yakut highway - the section from Bomnak to the Uchura River, 1913
Surveys of the Yakut highway - the section from Bomnak to the Uchura River, 1913
Surveys of the Yakut highway - the section from Bomnak to the Uchura River, 1913
Surveys of the Yakut highway - the section from Bomnak to the Uchura River, 1913
Surveys of the Yakut highway - the section from Bomnak to the Uchura River, 1913