what does the sahara cross
The Sahara desert is the third largest desert in the world. It is  also the world's hottest desert. The countries it covers include  Algeria, Chad, Egypt, Libya, Mali, Mauri â¦ tania, Morocco, Niger,  Western Sahara, Sudan, and Tunisia. The two largest deserts in Africa are the Sahara in northern Africa and the Kalahari in southern Africa.       The Sahara Desert covers 3,500,000 miles. It is the largest desert in the world. The name Sahara comes from the Arabic word for desert.