In this simply beautiful VIS image, taken by the NASA - Mars Odyssey Orbiter on April, 1st, 2003, and during its 5.750th orbit around the Red Planet, we can see a small portion of Granicus Valles: a very long (approx. 750 Km - such as about 465,75 miles) and intricated Outflow Channel located in the Amenthes Quadrangle of Mars, and centered at 30° North Latitude and 229° West Longitude.
Just out of curiosity, you may want to notice that only one (Unnamed) Impact Crater is visible all over the phographed area.
Latitude (centered): 27,2306° North
Longitude (centered): 135,4080° 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 19240) 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.