Today's VIS image shows part of northern Terra Sabaea, where hills are common. The blue tones are usually locations of basaltic sand.
The THEMIS VIS camera contains 5 filters. The data from different filters can be combined in multiple ways to create a false color image. These false color images may reveal subtle variations of the surface not easily identified in a single band image.
Orbit Number: 60587 Latitude: 34.6347 Longitude: 66.5714 Instrument: VIS Captured: 2015-08-11 11:50
https://photojournal.jpl.nasa.gov/catalog/PIA22710