East Nooksack Glacier is in North Cascades National Park in the U.S. state of Washington, on the eastern slopes of Mount Shuksan. East Nooksack Glacier is only , but fills the upper portions of the Nooksack Cirque, spanning more than . East Nooksack Glacier is connected to Crystal Glacier at its uppermost section at . East Nooksack Glacier extends from Nooksack Tower to the northwest to Seahpo Peak to the southeast and meltwater from the glacier flows into the Nooksack River.