In this interesting (even though slightly "foggy") VIS image, obtained by the NASA - Mars Odyssey Orbiter on January, 4th, 2010, during its 35.745th orbit around the Red Planet, we can see, one more time, a (relatively small portion of the Martian - large and long - Canyon known as Coprates Chasma (---> the Coprates' Abyss).
Coprates Chasma is part of (---> belongs to), as you should already know, the Great Valles Marineris Canyon System; it is approx. 966 Km (such as about 599,886 miles) long and it was so named after a so-called "Classical Albedo Feature". The upper portion of the picture shows that the Sun still shines on that area, thus making the colors more brilliant and the frame a little bit over-exposed. A large triplet of ancient Landslides can also be seen near the lower left (Sx) as well as in the central portion of the frame.
Latitude (centered at approx.): 13,1686° South
Longitude (centered): 299,7920° East
This image (which is an Original Mars Odyssey Orbiter falsely colored and Map-Projected frame published on the NASA - Planetary Photojournal with the ID n. PIA 20593) has been additionally processed, magnified to aid the visibility of the details, contrast enhanced and sharpened, Gamma corrected and then re-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.