National Geographic : 1957 Sep
Qu e6" Queen L m o -i Expeditions Led by Adm. Richard E. 38( Byr This map, based on official Navy logs, shows by colors how the Admiral's five expeditions, spanning three decades, successively put out exploring fingers to bare the profile of the vast white continent. Byrd's conquest of the South Pole by air and the discovery of Marie Byrd Land climaxed his 1928-29 venture. By ship and plane, more than 450,000 square miles of land and surrounding waters were explored and mapped by the 1933-35 party. Delineation of the Pacific coastline highlighted the 1939-41 journey. Maic, 4a<3 I Tore the Veil from Half of Antarctica Flights during Operation Highjump covered an area more than half as large as the United States and recorded 10 new mountain ranges. Aerial surveyors with Operation Deep Freeze I swept across Wilkes Land and from the Ross Sea to the Weddell Sea a 3,200-mile flight, the longest yet made in Antarctica. Altitude and visibility determined the area seen by observers aboard each flight. In good weather crew men at 7,000 feet could scan the ice sheath for 100 miles on either side.