Libya Montes valley region on Mars

This image was obtained by the HRSC on ESA's Mars Express on 7 October 2004 during orbit 922 with a ground resolution of approximately 14.3 metres per pixel at equatorial latitudes near longitude 81° East. North is up.

The image shows the central reaches of a 400-kilometre long valley that was carved into the surface in early Martian history, approximately 3500 million years ago.