Broken Plain

This Mars Global Surveyor MGS Mars Orbiter Camera MOC image shows 
polygonally patterned ground on the floor of a trough in the southern 
hemisphere of Mars. The polygons could be an indicator that ground ice is 
or was present at this location

This Mars Global Surveyor MGS Mars Orbiter Camera MOC image shows polygonally patterned ground on the floor of a trough in the southern hemisphere of Mars. The polygons could be an indicator that ground ice is or was present at this location