Dust devil tracks
on floor of Wallace Crater, as seen by CTX camera (on Mars Reconnaissance Orbiter). Note this is an enlargement of the previous image of the floor of Wallace Crater.
Wallace Crater is an impact crater in the Hellas quadrangle on Mars at 52.9°S and 249.4°W and is 173.0 km in diameter. Its name was approved in 1973 by the International Astronomical Union (IAU) Working Group for Planetary System Nomenclature (WGPSN), and it was named after Alfred Russel Wallace.