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Pingo on the northeastern NPRA coastal plain, with subtle permafrost polygons in foreground. Field of view in middle of photo is approximately 1/4 mile. Location in northeastern NPRA about 20 miles west of Colville River delta.
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Pingo on the northeastern NPRA coastal plain, with subtle permafrost polygons in foreground. Field of view in middle of photo is approximately 1/4 mile. Location in northeastern NPRA about 20 miles west of Colville River delta.