NASA's Mars Global Surveyor shows the lower south flank of the Olympus Mons volcano on Mars; lava flows with leveed central channels and a variety of surface textures are present. The picture was taken in July 1998.

This view of the lower south flank of the Olympus Mons volcano shows lava flows with leveed central channels and a variety of surface textures. The picture was taken in July 1998.

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