Assertion: mead's acre foot | /r/HasProperty | 4.1 km3
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text: From mid-May 2011 to January 22, 2012, Lake Mead's water elevation increased from 1,095.5 to 1,134.52 feet (333.91 to 345.80 m), after a heavy snowmelt in the Rocky Mountains prompted the release of an extra 3.3 million acre feet (4.1 km3) from Glen Canyon into Lake Mead.