Palouse Falls Chapter President Stoess presents on Columbia River history

Attendees who came to the Ritzville Public Library on Sept 11 indulged on a slice of through geological history as Lloyd Stoess, presented “Changing the Course of the Columbia River,” which is part of the Ice Age Floods Institute’s traveling lecture series.

Stoess, president of the Ice Age Floods Institute’s Palouse Falls Chapter, presented a slideshow on how the Missoula Floods and other geological events changed the course of the Columbia River.

One of these events was the Columbia River Basalt Group, which occurred 16 million years ago after molten rock from numerous lava eruptions covered...