Description
28 October 2005
This Mars Global Surveyor (MGS) Mars Orbiter Camera (MOC) image shows flow materials (on the east/right side of the image) that have come in among a suite of sharp ridges and grooves on the floor of the vast Kasei Valles system. The ridges and grooves are much older and are believed to be the result of a giant, catastrophic flood. The flows might have been mud or lava that ran part way down the ancient valley at a later date.
Location near: 16.7°N, 76.5°W
Image width: width: ~3 km (~1.9 mi)
Illumination from: lower left
Season: Northern Winter
