This VIS image shows a section of Sirenum Fossae. The linear depression was created by tectonic forces stretching the surface. Paired faults allow blocks of the surface to slide down into the open space. The linear depression is called a graben. Orbit Number: 80616 Latitude: -27.3687 Longitude: 217.266 Instrument: VIS Captured: 2020-02-16 05:35 https://photojournal.jpl.nasa.gov/catalog/PIA23856