PSP_008452_2175_Utopia_Planitia

From the HiRISE page for this image,
"This image shows features from Utopia Planitia, part of the broad northern plains of Mars. Much research has focused on possible ice-related geomorphology in this area, which contains many peculiar landforms. "
With Phoenix underway testing ice in a trench, the newer HiRISE image shows features, some common for the icy northern plains, and some unusual. Are all these features the product or process of ice? Do the features indicate a non-surface repository of the ice?
a mound which rises steeply without any apparent crater association. Size is 1 to 1 of the HiRISE original, with faint blue patches around the brilliant peak which appears ice covered. At the peak is a circular 'vent' or crater ring. No bright ices are apparent around the peak.
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Other interesting items all across this HiRISE image.
Image and linked site, Credit: NASA/JPL/University of Arizona