Coogoon Vallis Fan
Natural color image of the Coogoon Vallis fan. This region hosts a wide variety of clay-rich rocks, which the ESA's ExoMars Rover is slated to explore starting in 2021.
This image combines a mosaic of monochrome Mars Reconnaissance Orbiter CTX images with ~6 m/px resolution with color imagery from the Mars Express HRSC instrument, which has a color resolution of ~100 m/px. The large mismatch in resolution creates some color artifacts, especially near sharp boundaries. The full-resolution image can be downloaded here:
Image Credit: NASA / JPL / MSSS / ESA / DLR / FU-Berlin /J. Cowart, CC BY-SA 3.0 IGO