So-called anaglyph images can be generated from the nadir channel of the DLR-developed HRSC camera system on ESA's Mars Express spacecraft, which is directed perpendicularly to the surface of Mars, and one of the four oblique stereo channels. When used with red-blue or red-green glasses, they allow a three-dimensional view of the landscape. The topography is clearly visible. There is an altitude difference of about 7000 metres between the plateau in the centre of the picture and the two rift valleys to the north and south. North is to the right in the image.