This VIS image shows part of the dune field on the floor of Halley Crater. Rather than small individual sand dunes, the sand here is collected into a sand sheet and dune forms have been created on that surface. Halley Crater is located on the western margin of Argyre Planitia. Orbit Number: 74936 Latitude: -48.1494 Longitude: 300.871 Instrument: VIS Captured: 2018-11-05 11:49 https://photojournal.jpl.nasa.gov/catalog/PIA22971