This cluster of gullies is on the wall of Bamberg Crater.
The impact crater has an extremely eroded and terraced rim. However, the gullies do not have extensive aprons and overall there appears to be very little material accumulated on the crater floor — unlike many other craters with gullies. This may indicate the gullies are young features.
However, gully formation on Mars is still not completely understood, and more information and observations are needed to improve our interpretation of these features.
This caption is based on the original science rationale.
Written by: HiRISE Science Team (18 January 2012)
More info and image formats at http://hirise.lpl.arizona.edu/ESP_024951_2200
Image: NASA/JPL/University of Arizona