In the right foreground of the image is hint of a plucking front of the roche moutonnée visible in the Siyeh limestone. Sexton has a steeper forefront which may hamper this feature development (Photograph by Dianna Gielstra). 

Underdeveloped roche moutonnée

Matahpi Peak

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Bergschrunds located at the top of Sexton Glacier. The feature's wedge shape is a gap caused as the glacier breaks away from the mountain.

Bergschrunds 

Represents the transition between glacial ice and snow.

Firn Line

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Sexton Glacier Front

Photosphere processing...