Section of Bathymetric Chart of the Northwest Pacific showing Philippine Trench, Yap Trench, and Palau Trench bordering Philippine Sea. Japanese Hydrographic Office Bathymetric Chart 6901. Note unique shading and contouring method. 1954.
Image ID: map00214, Voyage To Inner Space - Exploring the Seas With NOAA Collect • High Resolution Photo Available
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