Thick beds with varying tone are exposed along the edge of the fan. Shallow valleys that carve into the smooth upland surfaces outside of the crater may provide clues regarding the formation of the deposits. Many boulder-sized blocks sit on the interior crater floor beyond the toe (distal edge) of the deposits.
This fan-hosting crater is located near the boundary between Tempe Terra and Acidalia Planitia in the Northern Hemisphere of Mars. [More at link]