Transportation by mules.
Guatemala-Honduras boundary survey.
Astro party of Joseph Lushene
Image ID: theb1526, NOAA's Historic Coast & Geodetic Survey (C&GS) Collection
Location: Central America
Photo Date: 1935
Credit: C&GS Season's Report Lushene 1935
• High Resolution Photo Available
of the U.S. Department of Commerce, National Oceanic & Atmospheric
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June 10, 2016