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Spring Slide
The North Polar region of Mars is capped with layers of water ice and dust, called the “polar layered deposits.” This permanent polar cap is covered in the winter with a layer of seasonal carbon dioxide ice.
Here, we can see a dark streak marking the path of that loose material, approximately 1 kilometer wide. HiRISE images often show avalanches in progress in the springtime along the edge of the polar layered deposits in this area.
