Figure 5 - Mars ridge

Colour image of a flat top, heavily eroded fluvial sinuous ridge (FSR) on Mars. Sand dunes can be seen migrating over the top of the FSR.
Colour image of a flat top, heavily eroded fluvial sinuous ridge (FSR) on Mars. Sand dunes can be seen migrating over the top of the FSR.
HiRISE Image: ESP_085386_1505 NASA/JPL/University of Arizona