The intersecting ridges in this image captured by NASA 2001 Mars Odyssey spacecraft are called Angustus Labyrinthus. They were formed due to tectonic activity. Orbit Number: 58571 Latitude: -81.4906 Longitude: 297.295 Instrument: VIS Captured: 2015-02-26 11:02 http://photojournal.jpl.nasa.gov/catalog/PIA19432