This image covers a location that has been imaged several times to look for changes in gullies. The cutout shows a comparison between the first HiRISE image of the location and one of the more recent views. A lobate, rubbly flow (noted by the arrows) has been deposited near the mouth of the channel between the time of the two images. Further up the slope, the channel system has been modified by both erosion and deposition. Other images can pin down the timing of this flow more precisely, but it is easier to see… [More at link]
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