Exploratour - The Surface of Mars
This image shows some of the soils of Mars from the Viking 2 landing site, Utopia Planitia.
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NASA
Click on image for full size
NASA
Leave the Tour and look at the Annotated map of Mars
Soils
The soils of Mars are a brownish-red or -yellow color. The soils found near the rocks explored by Mars Pathfinder's Rover were similar to those found by Viking I.
This suggests that soils of Mars may be the same around the globe, perhaps carried around by global dust storms.