Atar to Chegga
 

Hi,
Can anyone advise on driving from Atar to Chegga (Mauritania) in a 4x4. I am interested in going via Ouadane. From there I an sure it's all off piste. Need any info you have on the following please?

1. Security
2. Tracks
3. Fuel in Chegga
4. Mapping of the area

Also, is it at all possible to enter Algeria from Chegga (even if I arrange a guide in a car to meet me)?

Thanks.