Okanogan Highlands Alliance (OHA) provided another extraordinary outdoor learning opportunity: a tour highlighting the geology of the highlands, expanding on what was shared during the past three years’ Highland Wonders geology tours. On Saturday, August 16th, Geology of the Okanogan Highlands, Part IV was led by a team of speakers who each brought a different emphasis. The team was headed by Dr. Karl Lillquist, a professor in the Geography Department and Co-Director of the Resource Management Graduate Program at CWU. He was also an instructor for the Ellensburg Chapter of the Ice Age Floods Institute, and co-led last year’s OHA Geology Tour. Karl has degrees in Geography and Geology, and a special interest in geomorphology, a field of study that focuses on landforms and how they originated.