This is a Mars Orbiter Camera view of the cratered uplands located between the Amenthes Fossae and Hesperia Planum. This ancient, cratered surface sports a covering of windblown dunes and ripples oriented in somewhat different directions. The dunes are bigger and their crests generally run east-west across the image. The ripples are smaller and their crests run in a more north-south direction.
Illumination is from the top.
Malin Space Science Systems and the California Institute of Technology built the MOC using spare hardware from the Mars Observer mission.