Aeolis Quadrangle - Yardangs

Yardangs

Yardangs are common on Mars. They are generally visible as a series of parallel linear ridges. Their parallel nature is thought to be caused by the direction of the prevailing wind. Two HiRISE images below show a good view of yardangs in the Aeolis quadrangle. Yardangs are common in the Medusae Fossae Formation on Mars.

• Stream channels in inverted relief and yardangs, as seen by HiRISE.

• Aeolis Mensae Yardangs, as seen by HiRISE. Scale bar is 500 meters long. Click on image for better view of yardangs.

• Medusae Fossae Formation southeast of Apollinaris Patera, as seen by HiRISE.

• Yardangs in Medusae Fossae Formation with caprock labeled, as seen by HiRISE.