The classical albedo features of Mars are the light and dark features that can be seen on the planet Mars through an Earth-based telescope. Before the age of space probes, several astronomers created maps of Mars on which they gave names to the features they could see.
Mars' classic surface markings are the visible light and dark areas discernible through terrestrial telescopes. Before spacecraft were sent to explore, astronomers compiled maps of Mars, assigning names to the distinct features they could see.