Our spectacular Northwest landscapes represent devastating, natural events that shaped the region. Imagine enormous surges of molten lava flowing across the land, then 2 million years of glacier ice sheets thousands of feet thick, and a series of breath-taking floods that created the Eastern Washington Channeled Scablands, all bringing us to today’s remarkable Cascades volcanic scenery. Join retired park ranger Pat Pilcher as he interprets these events to help you understand and appreciate the monumental, geologic legacy. Free, RSVPs appreciated!