Description
Summary:Relief shown by hachures and spot heights. Depths shown by soundings and isolines.; Magma Bay (Tugur Bay, Sea of Okhotsk) according to the survey of the Hydrographic Expedition of the Pacific Ocean, 1911.; "Okhotskoe More Tugurskīĭ No. 194" [Sea of Okhotsk Tugur Bay No. 194] -- Across top margin.; "Masshtabʺ 1/38600 ili 400 sazhenʺ vʺ 1 di︠u︡ĭmi︠e︡" [Scale 1/38600 or 400 sazhens in 1 inch] Grayscale; 1:38,600