Part of the Sirenum Fossae region in the Southern Highlands of Mars, presented in 3D. The image shows the region centred at about 28°S / 185°E. It extends about 230 km by 127 km and covers 29 450 sq km, roughly the size of Belgium. The image was taken by the High Resolution Stereo Camera (HRSC) on ESA’s Mars Express spacecraft during orbit 6547. The image resolution is about 29 metres per pixel. This 3D image was derived by combining data from the nadir channel and one stereo channel of HRSC. Stereoscopic glasses are required to see the 3D effect.