This is an oblique view of gully deposits from the steep slope of an impact crater.
The deposits with anomalous (bluish) colors may reveal very recent activity, not yet homogenized by dust deposition, or there may be sand preferentially trapped in some places to give this appearance.
Written by: Alfred McEwen (27 April 2017)
This is a stereo pair with ESP_013667_1345 .
More info and image formats at http://hirise.lpl.arizona.edu/ESP_013944_1345
Image: NASA/JPL/University of Arizona