At the bottom of this VIS image of Daedalia Planum is the uppermost rim of an impact crater. The unnamed crater has been almost completely filled by lava flows originating from Arsia Mons.
Orbit Number: 71346 Latitude: -21.6885 Longitude: 229.536 Instrument: VIS Captured: 2018-01-13 18:33
https://photojournal.jpl.nasa.gov/catalog/PIA22382