This VIS image shows part of the Memnonia Fossae graben. Memnonia Fossae, Mangala Fossae and Sirenum Fossae are all long graben (tectonic troughs) systems that stretch from eastern Terra Sirenum into western Daedalia Planum. Orbit Number: 80629 Latitude: -21.8719 Longitude: 201.417 Instrument: VIS Captured: 2020-02-17 07:18 https://photojournal.jpl.nasa.gov/catalog/PIA23909