This Mars Global Surveyor (MGS) Mars Orbiter Camera (MOC) image shows light-toned, layered, sedimentary rock outcrops in the crater, Terby. The crater is located on the north rim of Hellas Basin. If one could visit the rocks in Terby, one might learn from them whether they formed in a body of water. It is possible, for example, that Terby was a bay in a larger, Hellas-wide sea.
Location near: 27.9Â°S, 285.7Â°W
Image width: ~3 km (~1.9 mi)
Illumination from: upper left
Season: Southern Winter