In this nice VIS image, taken by the NASA - Mars Odyssey Orbiter on September, 4th, 2015, and during its 60.880th orbit around the Red Planet, we can see part of the Margin (---> Edge) of the North Polar Permanent Cap, called Olympia Rupes (---> Rupes, in Latin Language, means Scarp). The Layering of the North Polar Cap is very well visible in this picture.
Latitude (centered): 84,6789° North
Longitude (centered): 214,0020° East
This image (which is an Original Mars Odyssey Orbiter b/w and Map Projected frame published on the NASA - Planetary Photojournal with the ID n. PIA 20095) has been additionally processed, magnified to aid the visibility of the details, extra-contrast enhanced and sharpened, Gamma corrected and then colorized in Absolute Natural Colors (such as the colors that a normal human eye would actually perceive if someone were onboard the NASA - Mars Odyssey Orbiter and then looked down, towards the Surface of Mars), by using an original technique created - and, in time, dramatically improved - by the Lunar Explorer Italia Team.