Itβs all about the Timing, Topography and [Rock] Type
The Wenatchee Valley Erratics, Ice Age Floods Instituteβs next program will be on Tuesday, October 11 at 7:00 PM at the Wenatchee Valley Museum and Cultural Center. Brent Cunderla, long-time Erraticsβ president, will discuss βItβs all about the Timing, Topography and Type.βTiming of the Pleistocene Cordilleran Ice Sheet with topography (Purcell Trench in northern Idaho, and the Okanogan Valley) allowed blockage-forming glacial lakes. Ice dams created Glacial Lakes Missoula and Columbia. Break-up of ice dams caused lake flood waters to […]