Dune forms cover the top of this sand sheet on the floor of Juventae Chasma, a chasma north of the Valles Marineris canyon system in this image from NASA Mars Odyssey.
Dune forms cover the top of this sand sheet on the floor of Juventae Chasma, a chasma north of the Valles Marineris canyon system in this image from NASA Mars Odyssey.