The Circumnavigation Project was conceived as a way to better understand mountains that we just go to the top of. We only experience one facet of the peak that way. In a circumnavigation, you see how the mountain is constructed. Originally the Circumnavigation Project was going to be the Volcanic 5 – Mount Rainier, Mount Adams, Mount Baker, Glacier Peak, and Mount St. Helens. This has since been expanded to include Mount Olympus.