The digital terrain models generated using data acquired by the stereo image channels of the High Resolution Stereo Camera on ESA’s Mars Express orbiter can be used to create perspective views of the Martian landscape. By enhancing the contrast in the colour data, differences in material and texture become more apparent. The large Tantalus Fossae graben system in the northern hemisphere of the Red Planet lies to the east of the four-kilometre-high Alba Patera volcano and shows numerous tectonic grabens that were created by local and regional stresses in the Martian crust.