a volcanic area in SW Alaska, in Katmai National Monument.
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British Dictionary definitions for Valley of Ten Thousand Smokes
a volcanic region of SW Alaska, formed by the massive eruption of Mount Katmai in 1912; jets of steam issue from vents up to 45 m (150 ft) across
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012