Sedimentary Layers in Columbus Crater (ctx frame - possible True Colors; credits: Lunar Explorer Italia)

This image covers a portion of the North-Eastern Inner Wall of Columbus Crater, located in the Southern Hemisphere of Mars and is approx. 100 Km (about 60 miles) in diameter.

Layered sedimentary rocks are found on the Crater Walls and Floor, and may have been deposited by water or by wind. These rocks have subsequently been eroded to expose their successive layers in cross-section.
The near-infrared spectrometer CRISM has revealed that these layers contain various hydrated minerals.

Mars Local Time: 15:42 (middle afternoon)
Coord. (centered): 28,6° South Lat. and 194,3° East Long.
Spacecraft altitude: 256,0 Km (such as about 160,0 miles)
Original image scale range: 25,6 cm/pixel (with 1 x 1 binning) so objects ~77 cm across are resolved
Map projected scale: 25 cm/pixel
Map projection: EQUIRECTANGULAR
Emission Angle: 0,5°
Phase Angle: 70,9°
Solar Incidence Angle: 70° (meaning that the Sun is about 20° above the Local Horizon)
Solar Longitude: 137,3° (Northern Summer)
Credits: NASA/JPL/University of Arizona
Additional process. and coloring: Lunar Explorer Italia