Today's VIS image shows some of the extensive wind etched terrain in Memnonia Sulci, located southwest of Olympus Mons. The linear ridges are called yardangs and form by wind removal of semi-cemented material. The ridges are parallel to wind direction, so the predominate winds that created the yardangs in this image blew NW/SE. Orbit Number: 81216 Latitude: -7.99809 Longitude: 185.052 Instrument: VIS Captured: 2020-04-05 15:23 https://photojournal.jpl.nasa.gov/catalog/PIA23944