Digital Terrain Models created from dual images produced by the HiRISE (High Resolution Imaging Science Experiment) camera on the Mars Reconnaissance Orbiter provide elevation data for the surface of the Red Planet. And they are very pretty as well : The most beautiful images of Mars you’ve ever seen – io9.com.
Here are a couple of samples.
HiRise | DTM: East Coprates Chasma Dune Fields and Wall Rock (Stereo view):