Shuksan rises in Whatcom County, Washington immediately to the east of Mount Baker, and 11.6 miles (18.7 km) south of the Canada–US border.[5] The mountain is composed of Shuksan greenschist, oceanic basalt that was metamorphosed when the Easton terrane collided with the west coast of North America, approximately 120 million years ago.Sulphide Creek Falls, one of the tallest waterfalls in North America, plunges off the southeastern flank of Mount Shuksan.There are four other tall waterfalls that spill off Mount Shuksan and neighboring Jagged Ridge and Seahpo Peak, mostly sourced from small snowfields and glaciers.The traditional name of Mount Shuksan in the Nooksack language is Shéqsan ("high foot") or Ch’ésqen ("golden eagle").