[Fred Nerks]

http://www.gly.uga.edu/railsback/FieldImages2.html

Drainage Patterns and Paleoclimate

A MODIS image of the Central Sahara and a higher-resolution view within the previous image showing dendritic drainages that are evidence of wetter climates in the past in the Sahara.

http://www.gly.uga.edu/railsback/FieldImages/CentralSaharaMODISMega.jpeg

[SunkenCiv]

Thanks for both.