This mosaic of three frames from the Huygens Descent Imager/ Spectral Radiometer (DISR) instrument provides unprecedented detail of the high ridge area including the flow down into a major river channel from different sources.
The Descent Imager/Spectral Radiometer is one of two NASA instruments on the probe.
For more information about the Cassini-Huygens mission visit http://saturn.jpl.nasa.gov .
Credit: ESA/NASA/JPL/Univ. of Arizona