Eel Glacier is located to the north of Mount Anderson and east of West Peak, in Olympic National Park in the U.S. state of Washington. The northward-facing glacier starts at about in elevation, with an arm extending up to . As the glacier flows north, it descends in elevation to about at its terminus. Meltwater from the glacier gives rise to Silt Creek, which flows through the Olympic Mountains and Olympic National Park. Between 1920 and 2009, Eel Glacier has retreated significantly, losing 50 percent of its surface area.