Volcanic landscape. Satellite images of northern Patagonia at Los Menucos, Argentina. To view a stereoscopic 3D image, cross your eyes until a third white dot appears between the two dots at left and right, the central image is 3D. These images show a single volcano that has been deeply eroded (dark butterfly-shaped region at lower centre). A more recent volcanic cone with a long stream of larva can also be seen (upper left), along with a chain of small dark volcanic peaks (top). The volcanic formations are linked to a geographic fault that runs from upper centre to lower left. Image produced by combining Landsat 7 images taken on 22nd January and 19th February 2000 with data from the Shuttle Radar Topography Mission.