Want to learn more about how and when our local mountains were created? Attend a dynamic, illustrated geology lecture by Dr. Jeffrey Tepper from University of Puget Sound.
Port Townsend lies between two mountain belts with very different origins, the oceanic Olympic Mountains to the west and the continental Cascade Range to the east. Despite their contrasting traits, the histories of these two ranges of high peaks are intimately connected. In this presentation discover how the arrival of the Siletzia terrane, a massive pile of lava flows up to ten miles thick, about 52 million years ago, led to the profound geologic transformation of the Pacific Northwest.