| Bedrock Exposures in Nirgal Vallis
This observation covers two tributaries and the main channel of Nirgal Vallis. The channel is approximately 610 kilometers long and is named after Nergal, the Babylonian god of war and counterpart to the Roman god of war, Mars. Mars Orbiter Camera image show light-toned bedrock; our high resolution picture can give us a better view of the channel form and bedrock stratigraphy. |
| A Patchy Outcrop of Light-Toned Materials
This observation targets a small region of patchy light-toned materials visible in Context Camera images. These outcrops are small, precluding geomorphological analysis and assignment of a stratigraphic position relative to the surrounding materials. The shape of this material closely resembles sinuous, light-toned outcrops elsewhere in Terra Cimmeria. The latter group may be fluvial in nature; if so, the detection of similar materials in a non-fluvial setting may be useful for comparison purposes. | 
| A Circular Landform within an Impact Crater
This circular formation appears to have the land around it sloping to its edge. The formation then looks to rise out of the ground with various others different formations around it. There also what appears to be a small crater on the top. When viewing this area using infrared background, the land formation has several markings on one side more than the other. | 
| Channel, Fan, Crater
The objective of this observation is to examine a channel on a crater wall, where a fan has formed at the base. Images like this, also found in Context Camera data, may help us better understand how craters are degraded. This particular crater is one of many located to the northwest of the massive Hellas impact basin. | 
| Layering in Arabia Terra
The objective of this observation is to search for layering in Arabia. In Context Camera data, the layering shows up in buttes, ridges, and the edges of mesas. Our image may be able to see many more of these layers. This image will also help us to determine the horizontal extent of layering in the region. |
