NASA/JPL/Malin Space Science Systems
|This Mars Global Surveyor (MGS) Mars Orbiter Camera (MOC) image shows wind-eroded outcrops overlying lava flow surfaces located west of Olympus Mons. Outcrops with this appearance are called yardangs. Yardangs typically form in sedimentary rock or volcanic ash that contains some amount of sand. The weathering of the rock and release of sand-sized particles from the outcrops, in the face of wind erosion, slowly shape the rock into the classic, inverted boat hull-like shapes of yardangs.|
|Location near: 13.2°N, 160.1°W|
|Image width: ~3 km (~1.9 mi)|
|Illumination from: lower left|
|Season: Northern Spring|
Malin Space Science Systems and the California Institute of Technology built the MOC using spare hardware from the Mars Observer mission. MSSS operates the camera from its facilities in San Diego, California. The Jet Propulsion Laboratory's Mars Surveyor Operations Project operates the Mars Global Surveyor spacecraft with its industrial partner, Lockheed Martin Astronautics, from facilities in Pasadena, California and Denver, Colorado.