In this VIS image, taken by the NASA - Mars Odyssey Orbiter on March, 2nd, 2015, and during its 58.616th orbit around the Red Planet, we can see a countless number of Dust Devil Tracks (or "DDT", for short) covering - among other things - at least 8 (eight) old Unnamed Impact Craters as well as a small Knob (look at the upper right - Dx - side of the frame) and a medium-sized Hill (check the lower right - Dx - side of the picture).
The Dark Linear Marks visible here recorded where each of the Dust Devil was in contact with the Martian Surface and removed the Dust, thus revealing the darker Suface that is lying below.
Latitude (centered): 66,6715° South
Longitude (centered): 231,7850° East
This image (which is a crop taken from an Original Mars Odyssey Orbiter b/w and Map-Projected frame published on the NASA - Planetary Photojournal with the ID n. PIA 19437) has been additionally processed, magnified to aid the visibility of the details, 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.