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The coordinates are approximate.
The first base in the series was established in January 1929 by Richard Byrd, and was abandoned in 1930. This was where the film With Byrd at the South Pole (1930) was filmed, about Byrd's trip to the South Pole.
Little America II was established in 1934, some 30 feet above the site of the original base, with some of the original base accessed via tunnel. This base was briefly set adrift in 1934, but the iceberg fused to the main glacier.
During the 1934–1935 expedition, many souvenir letters were sent from Little America, using a commemorative postage stamp issued by the U.S. government. Little America established the first successful radio broadcasting from Antarctica, making regular broadcasts that could be picked up by household radio sets in the United States, more than 11,000 miles away around the Earth's curvature.
Little America III was established for the 1940–1941 season some 6 miles to the north.
In 1940 a huge, extraordinary, exploration vehicle, the Antarctic Snow Cruiser, was brought to Little America III. Unfortunately the vehicle was found to have a number of design and technical weaknesses and was little used. Abandoned, it became buried in the snow. It was last rediscovered in 1958, but has subsequently been lost once again: either under the snow; or under the waters of the Southern Ocean.
Little America IV was established in 1946–1947.
Little America V was established on January 3, 1956, at Kainan Bay, some 30 miles to the east of Little America IV, as part of Operation Deep Freeze. Little America V served as the American base in the South Polar program in the International Geophysical Year. Little America V was constructed by US Navy Seabees in the three month window before the Antarctic winter makes construction next to impossible. All of Little American V was constructed below the snow line in the ice, with individual living quarters, generator room, cafeteria, and with ramps leading out at one end for tracked vehicles. This type of construction meant that none of those staying in Little America V had to go out of door in the harsh winter when going from one section to another or the Antarctic town.