Have a look around Mars

It shows an unnamed impact crater located on Vastitas Borealis, a broad plain that covers much of Mars's far northern latitudes, at approximately 70.5° North and 103° East.

The crater is 35 kilometres wide and has a maximum depth of approximately 2 kilometres beneath the crater rim. The circular patch of bright material located at the centre of the crater is residual water ice.

The colours are very close to natural, but the vertical relief is exaggerated three times. The view is looking east.

A lot of high quality pictures from ESA's Mars Express. Super high bandwidth site, and it needs to be because the images are 3-5MB in size. There's also some info that goes with each picture.