Stereo anaglyph of "Victoria Crater"
HiRISE has imaged Victoria three times, and shown is a combination of two of those views.
The red-colored image is TRA_000873_1780 and was acquired with MRO pointed 3.84 degrees to the west. The blue-color image is PSP_001414_1780 and was acquired with MRO pointed 16.2 degrees to the west.
To see the topography, view this image through glasses with a red filter for your left eye, and a blue or blue-green filter for your right eye. The difference in viewing angle between the two images is about 12 degrees, greater than the convergence angle between the left and right eyes of humans while viewing distant objects, so the vertical relief appears much steeper than is actually the case. While some of the cliffs around the crater are in fact vertical, the slopes below the cliffs are no steeper than 30 degrees.
For more information about the two images, see:
The third image is PSP_001612_1780 and will be released in full when geometric processing has been completed. All three images are shown here in their original geometry, not reprojected to map format.