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7-26-2009 1:26 AM
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Vietnam's Son Doong cave, the largest single cave passage yet found. First explored earlier this year by a joint British-Vietnamese team, the cave measures at least 262-by-262 feet (80-by-80 meters) in most places and is at least 2.8 miles (4.5 kilometers) long.
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7-26-2009 1:35 AM
merrie
Wow, that's a mega-cave.
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