English: These maps show both Pluto and Charon in equirectangular projection.The size distribution and morphology of impact craters and basins on both worlds are varied and unique, ranging from small simple craters to the massive, nitrogen-filled Sputnik Planitia basin. Several features may appear like craters, but have been ruled out as impact features; this is especially apparent on Pluto, where numerous non-impact depressions accompany craters on its complex, eroded surface.