South of the Valles Marineris valley system, which runs from west to east, runs the parallel chain of collapsing calderas of the Coprates Catena (beyond the image). From there, several hundred kilometres to the south, the Coprates Ridge extends, the highest points of which can be seen in this perspective view. The mountain range separates the volcanic Thaumasia Plateau in the west from the Noachis Terra plain several thousand metres below in the east. A section of Ibragimov Crater can be seen in the foreground.