It was taken on 14 March 2005 (orbit number 1483) by the High Resolution Stereo Camera (HRSC) onboard ESA’s Mars Express with a ground resolution of approximately 29 metres per pixel.

The area is located on the northern edge of Arabia Terra and borders the southern high- and northern lowlands, at approximately 39° North and 23° East.

The scene has been derived from the three HRSC colour channels and the nadir channel.

Credits: ESA/DLR/FU Berlin (G. Neukum)

It is believed that the valleys visible in the image may have originated from intense flooding by melted water ice. The water then froze rather quickly and flowed down the slopes of the depression like a glacier.

The view has been calculated from the digital terrain model derived from the stereo channels.

Credits: ESA/DLR/FU Berlin (G. Neukum)

The dark depression visible at the top-left of the image measures 2 000 metres in depth and 110 kilometres in diameter, north to south.

Deeply incised valleys of a depth ranging from 800 to 1200 metres are clearly identifiable in the north - eastern part of the scene. It is believed that those valleys may have originated from intense flooding by melted water ice. The water then froze rather quickly and flowed down the slopes of the depression like a glacier.

The view has been calculated from the digital terrain model derived from the stereo channels.

Credits: ESA/DLR/FU Berlin (G. Neukum)

The image was derived from the nadir channel which provides the highest detail of all channels.

Credits: ESA/DLR/FU Berlin (G. Neukum)

The image was calculated from the nadir and one stereo channel.

Credits: ESA/DLR/FU Berlin (G. Neukum)