At this time, the Okanogan Lobe and Purcell Trench Lobe blocked the Columbia River, forming glacial lakes Columbia and Missoula. Glacial Lake Missoula was metastable and its ice dam released episodic ...

If their dams break, the corresponding glacial lake floods can have catastrophic consequences for the population living downstream. The Potsdam research team was able to show that it is not only ...