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Which mountains did Richard E. Byrd’s first Antarctic expedition discover?

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Richard E. Byrd stands on a ship deck in heavy fur clothing and a leather cap, holding a sundial compass during an Antarctic expedition. — Richard E. Byrd Richard E. Byrd.

During his first Antarctic expedition (1928–1930), Richard E. Byrd’s team discovered a range of high mountains, which they named the Rockefeller Mountains.