Sweet Spot for Landing on Mars

Caption NASA:"This view shows scattered rocks and a polygonal ground texture within the "sweet spot" of the planned landing area for NASA's Phoenix Mars Lander.

This is a subframe, covering a patch of ground about 250 meters (820 feet) across, from a larger image taken by the High Resolution Imaging Science Experiment (HiRISE) camera on NASA's Mars Reconnaissance Orbiter on Jan. 1, 2007.
The full image, catalogued as HiRISE image PSP_002170_2485, is centered at 68,3° North Latitude and 232,9° East Longitude".