Double Glacier

Double Glacier is an eleven-mile glacier in Alaska within Lake Clark National Park, about forty-seven miles west-northwest of Kenai. Divided into two lobes, it is the park’s largest glacier, covering about one hundred thirty-seven square kilometers, and it is retreating. One of its most notable features is the Double Glacier Volcano lava dome complex, a Pleistocene-age nunatak that rises through the ice. Potassium-argon dating places that formation between about 627,000 and 887,000 years ago. During the 2009 eruption of Redoubt Volcano, ash entirely covered the glacier.

Salamatof, Alaska · United States