Las Vegas Sun

August 31, 2015

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In this July 24, 2014, photo, dropping water levels reveal larger islands in Lake Mead compared to a picture on an interpretive sign on a hill overlooking the lake in the Lake Mead National Recreation Area in Nevada.

John Locher / AP

In this July 24, 2014, photo, dropping water levels reveal larger islands in Lake Mead compared to a picture on an interpretive sign on a hill overlooking the lake in the Lake Mead National Recreation Area in Nevada.