This file is a 640x480 pixel color GIF image showing an
enlargement of part of Valles Marineris, a large valley on Mars. 
An overview of the area containing this image is shown in 00N107. 
The detailed structure of the valley looks much like erosion
patterns on Earth.  Other parts of Valles Marineris are shown in
other images.  The color used is an approximation, rather than
"true" color.