Sirenum Fossae

This image captured by NASA 2001 Mars Odyssey spacecraft shows part of Sirenum Fossae, a large graben on the margin between Terra Sirenum and Daedalis Planum. Grabens are formed by the downward movement of material between parallel tectonic faults. Orbit Number: 65672 Latitude: -25.6345 Longitude: 220.325 Instrument: VIS Captured: 2016-10-03 07:01 http://photojournal.jpl.nasa.gov/catalog/PIA21177