Benu has, for most of it's habitable existence, been a temperate world that was once flush with life. Now, it's barren, rocky skin is showing the scars of billions of years. There are no jungles here, but there are a few pockets of shrubland steppes and a few plains, these being the least arid regions.
The rest is desert, stone, salt flats and dried seas, sinkholes, canyons (both natural and man-made), and similar features.
Much of the rock has been mined through and shows the mark of machine and hand pick alike.
Bony, protruding remains whether they be rusted scaffolding or animal fossils are not difficult to find. Potable water sources however, are another story.