A screen shot of “Washington's Ice Age Floods” story map from the Washington Geological Survey.
A screen shot of “Washington's Ice Age Floods” story map from the Washington Geological Survey. Courtesy Washington Geological Survey
A screen shot of “Washington's Ice Age Floods” story map from the Washington Geological Survey. Courtesy Washington Geological Survey

Map illustrates ice age floods that made state

May 06, 2017 11:47 AM

UPDATED May 08, 2017 06:52 PM

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