[henbane]

I see what looks like large ice lakes in lower right corner of the Hi Magnification View.

How else account for the glass-like smoothness of those lakes--and no meteorite craters pock the surfaces as in most of the rest of the land mass.

[Boogieman]

Good catch... if you look at the pockets of lower elevation between the “dune” areas, there appear to be what you called “ice lakes” all over the place!

They are exactly where you would expect water/ice to collect as well, in the crevices and valleys between the higher elevations...