Pingos in permafrost

Pingos are ice-cored hills that form in permafrost regions.
Originally uploaded in Integrate:Teaching for Sustainability:InTeGrate Modules:Modeling Earth Systems:Student Materials.

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Uploaded: Nov20 14

Last Modified: 2016-08-17 11:13:46
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Image by Emma Pike and accessed via Wikipedia. This image is in the public domain:
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