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

Visible in this edm is a north-facing slope (roughly 250 meters, or 800 feet, across) exposing finely layered sedimentary rock.

In this possibly true-color view, layers with a dark silver-gray appearance may be intrinsically darker, or may have a texture that more effectively collects dark sand particles, than adjacent layers with a brighter appearance.