William W. Shilts Geologic Image Gallery

Sinuous esker ridge of classic form that has melted out of glacier ice in 1992. The bouldery ridge in the background is the inner face of the substantial lateral moraine surrounding the rapidly retreating Stagnation Glacier (B28). The landform is actually composed mostly of glacial ice preserved by the insulating cover of a meter, more or less, of bouldery esker gravel. (Photograph taken by Christian Zdanovich.)