PIA03657: Nirgal Vallis
This image from NASA's Mars Global Surveyor shows the floor and walls of a small portion of Nirgal Vallis on Mars. The floor is covered by large windblown ripples.
 Target Name:  Mars
 Is a satellite of:  Sol (our sun)
 Mission:  Mars Global Surveyor (MGS) 
 Spacecraft:  Mars Global Surveyor Orbiter
 Instrument:  Mars Orbiter Camera (MOC) 
 Product Size:  836 x 1464 pixels (w x h) 
 Produced By:  Malin Space Science Systems 
 Producer ID:  MOC2-1337  
 Full-Res TIFF:  PIA03657.tif (1.225 MB)
 Full-Res JPEG:  PIA03657.jpg (163.1 kB)  

Click on the image above to download a moderately sized image in JPEG format (possibly reduced in size from original)

Original Caption Released with Image:

9 January 2006
This Mars Global Surveyor (MGS) Mars Orbiter Camera (MOC) image shows the floor and walls of a small portion of Nirgal Vallis. The floor is covered by large windblown ripples. The valley wall near the center right exhibits a group of gullies, formed perhaps by a combination of mass movement and possibly seepage and runoff of groundwater.

Location near: 28.2°S, 42.2°W
Image width: ~3 km (~1.9 mi)
Illumination from: upper left
Season: Southern Summer

Image Credit:
NASA/JPL/Malin Space Science Systems

Image Addition Date:
2006-01-09