This report represents the combined observations of Army personnel assigned to Task Force 68, Operation "Highjump", Naval Antarctic Development Project, December 1946 to April 1947. Chapters include information regarding the Army's interest in Antarctica, engineer operations; transportation, aircraft operation, search and rescue, medical issues, communications (Signal Corps), Communications (ACS), photography, meteorology, Antarctic plan for scientific exploration, and a combined observers' log.

N16706.4 Approved for public release; distribution is unlimited.