20 JAN — Anchored 1 mile northeast 
Rothera Point, Adelaide Island 67-34. OS 
68-05. 3W. Conducted geologic, biologic, 
and engineering survey Rothera Point area 
Sounded and plotted approaches, anchorage 
Located islands and rocks in area, aerial 
photo coverage of sea approaches and site 
area obtained. Located and marked boat 
landing. Made five mile traverse up ice 
piedmont taking slope measurements of 
possible aircraft landing site and ap- 
proaches. All USARP base survey require- 
ments area golf completed. Northern half 
of Marguerite Bay still nearly ice free. 
Making geologic collection flights to 
anchorage and Leonie Islands ivhile en- 
route out Marguerite Bay plus flight to 
British base. Proceeding to Anvers Island 
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