A makhtesh, the Makhtesh Ramon in the Israeli Negev desert, was Ole's challenge, which, in my first thoughts, should be an African one. Well, it wasn't but ... lucky me, was right next door :)
After a GE colour problem, I present a challenge with some peculiar colours (hope this one has the right colours for everyone)
Here it is:
So, your goal is to find out the exact location and the geology of this place and, if you are the first, you can have the honor of presenting the next WoGE. No Schott's Rule! Rules, tips and previous WoGEs are collected by Felix on his blog and a KML file is available with all WoGEs.