This is an image of the surface of Mars.
Click on image for full size
The uniquely red global surface of Mars is marked by many interesting
features - some like those on the Earth and others
strangely different. The reddish color is caused by rust
(iron oxide) in the soil.
Some of these features are; volcanoes, canyon systems, river beds, cratered
terrain, and dune fields.
Of these features, the most interesting include the
dead volcano named Olympus Mons and Valles Marineris. Olympus Mons rises very high
above the surrounding plains and is the highest known mountain in the
Solar System. Valles Marineris is a giant canyon that is about the size of the United States!
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