Wenatchee Valley Erratics Chapter of the Ice Age Floods Institute will meet at 7p.m., Tuesday, April 9, at the Wenatchee Valley Museum, 127 South Mission, Wenatchee.

Richard Waitt, Research Geologist with USGS Cascades Volcano Observatory, Vancouver, will talk about his book, In the Path of Destruction—Eyewitness Chronicles of Mount St. Helens. The book portrays Mount St. Helens’ May 18, 19...