This impact crater in the Nilosyrtis region of Mars contains numerous layers exposed along its floor. These layers formed long after the impact event and are likely deposits of dust and ice.
Also present are dunes of dark sand that probably blew in from the surrounding terrain.
Written by: Chris Okubo (6 February 2013)
This is a stereo pair with ESP_025911_2255 .
More info and image formats at http://hirise.lpl.arizona.edu/ESP_025001_2255
Image: NASA/JPL/University of Arizona