Epigenes A

Impact Melt (the dark material) flowed around and over Rocky Outcrops on the upper portion of the Crater Wall.
The white arrow points to the Crater Floor.
The initial outward surge of material during the excavation of the crater threw Impact Melt near the Rim and then gravity pulled the Melt downward during the modification stage of the impact.
(this image is approx. 540 meters wide)