DD Tracks in Southern Schiaparelli Basin (extra-detail mgnf - False Colors; credits: Lunexit)

This observation shows a Region near the Martian Equator that is a perfect tablet for the scribblings of Dust-Devils. This Region is made up of dark bedrock that is thinly blanketed by bright dust.
Dark tracks form when Dust-Devils scour the surface, exposing the darker substrate. The tracks tend to cluster together, as Dust-Devils repeatedly form over terrain that has been previously scoured and is consequently darker and warmer than the surrounding surface.

Once lofted by a Dust-Devil, the fine dust can be transported great distances before it settles again onto the surface.