22 June 2004
This Mars Global Surveyor (MGS) Mars Orbiter Camera (MOC) picture shows a cluster of impact craters, some of which damaged a portion of an old valley that runs roughly left to right in the lower half of the scene. The crater cluster most likely resulted from secondary impact of debris thrown from a much larger asteroid or comet impact, elsewhere on Mars. Large, light-toned, windblown ripples occur in many of the depressions in this portion of the Amenthes Fossae region. The picture is located near 7.3°N, 259.4°W, and covers an area about 3 km (1.9 mi) wide. Sunlight illuminates the terrain from the left/upper left.