High Quality Content by WIKIPEDIA articles! Prahl Crags (76°4?S 134°43?W? / ?76.067°S 134.717°W? / -76.067; -134.717) are a group of rock crags at an elevation of 2,750 m on the south slopes of the Mount Moulton massif, in Marie Byrd Land. Mapped by United States Geological Survey (USGS) from ground surveys and U.S. Navy air photos, 1959-66. Named by Advisory Committee on Antarctic Names (US-ACAN) for Sidney R. Prahl, a member of the United States Antarctic Research Program (USARP) team that studied ice sheet dynamics in the area northeast of Byrd Station, 1971-72. Mount Moulton is a broad, ice-covered shield volcano standing 16 km (10 mi) E of Mount Berlin in the Flood Range, Marie Byrd Land. Discovered on aerial flights by the United States Antarctic Service in 1940, and named for Richard S. Moulton, chief dog driver at West Base and a member of the survey party which sledged to the western end of the Flood Range in December 1940.

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