This image captured by NASA 2001 Mars Odyssey spacecraft shows a small portion of Olympica Fossae. Olympica Fossae is located on volcanic plains between Alba Mons and Olympus Mons. The linear margins and uniform width are controlled by faulting; this feature is called a graben. Orbit Number: 61317 Latitude: 26.0058 Longitude: 248.318 Instrument: VIS Captured: 2015-10-10 14:31 http://photojournal.jpl.nasa.gov/catalog/PIA20113