Photo of an alpine tarn in Chugach Mountains
A small alpine tarn, or alpine lake, in the eastern range of the Chugach Mountains. Snowmelt during the summertime fills up these little alpine lakes, and the glacial flower from the ice and snow yields a gorgeous aqua blue color. Alpine tarn, Wrangell - St. Elias National Park and Preserve, Alaska. Photo © copyright by Carl Donohue.