Gullies and Lobate Material in a Crater in Nereidum Montes

This crater has gullies on its southwest-facing walls and rim, as well as and what appears to be two separate instances of lobate (ear-shaped) material associated to its interior gullies.

This observation is a “ride-along” with the CTX Camera, which has a much larger footprint, but lower resolution than the HiRISE camera.

With much better resolution than CTX, HiRISE may be able to provide insight into the relationship between the features.

This caption is based on the original science rationale.

Written by: HiRISE Science Team   (7 September 2011)

This is a stereo pair with ESP_022540_1405 .

More info and image formats at

Image: NASA/JPL/University of Arizona