Numerous channels resembling terrestrial dendritic drainage systems surround the crater basin.
The crater floor itself is rather patchy in appearance. It is located in the southwestern quarter of the targeted crater. White-Rock is partially encircled by a dark band of unknown origin. Bright streaks with an albedo similar to White Rock are visible in high resolution images to the southeast of the crater and are thought to be wind-blown deposts. Such salt deposits are precipitated from chemical solution and, as such, differ from deposits precipitated by simple sedimentation of sand and debris.