What landforms are these? Mars lacks the mechanism of plate tectonics, which, strictly speaking, means there are no mountain ranges or chains on Mars. There are elevated areas, cliffs, escarpments and the like, as well as isolated volcanoes (e.g., Mons Olympus) but mountain ranges after the fashion of the Rockies, Alps, Andes, and Himalayas, are non-existent.
Impact ridges (crater rims) . . . or, perhaps, nuclear test sites.