Seahpo Peak is a subsidiary summit of Mount Shuksan in Washington’s North Cascades, connected by Jagged Ridge and rising amid glaciers, cirques, and cascading falls. Near the headwaters of streams that feed both the Baker and Nooksack river systems, it occupies a complex meeting point of watersheds and ice and is also known as Cloudcap Peak. Its name comes from the French word chapeau, meaning “hat.” The mountain’s sharp ridges, deep valleys, and stark alpine character were shaped over millions of years by tectonic activity, uplift, faulting, and repeated Pleistocene glaciation, then reinforced by the region’s wet marine west coast climate.