Hydrographic investigations were made by the Geodetic Control Project of Lake Tana and Lake Awasa for Water Studies Project and Ministry of Public Works and Communications.
Image ID: cgs01418, NOAA's Historic Coast & Geodetic Survey (C&GS) Collection Location: Africa, Ethiopia Photo Date: 1960 circa Credit: NOAA/NOS/National Geodetic Survey Category: Coast and Geodetic Survey/ • High Resolution Photo Available
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