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In this photo, a U.S. Antarctic Program participant stands near an iceberg trapped in the sea ice of McMurdo Sound. McMurdo Sound and its ice-clogged waters extend about 55 kilometers (34 miles) long and wide. The sound connects the Ross Sea to the north with the Ross Ice Shelf cavity to the south via Haskell Strait.
The strait is largely covered by the McMurdo Ice Shelf.Image credit: Elaine Hood, The National Science Foundation/Source: U.S. Antarctic Program photo Library
