Crater Dunes

This image from NASA 2001 Mars Odyssey spacecraft shows a wedge shaped field of dunes located in an unusual depression on the floor of this unnamed crater in Noachis Terra. Orbit Number: 57975 Latitude: -68.3204 Longitude: 1.36954 Instrument: VIS Captured: 2015-01-08 09:06 http://photojournal.jpl.nasa.gov/catalog/PIA19201