ACE_floor_map_Mars_Arizona.jpg
Detailed Description
Photograph of the large topographic floor map of Mars at the USGS Astrogeology Science Center. A separate map of Arizona, printed to the same scale, allows visitors to compare the size of geographic features. In particular, the "grand canyon" of Mars, Valles Marineris can be compared to the Earth's Grand Canyon.
Sources/Usage
Public Domain.