This large sea serves as the Sahara's northern boundary
The boundaries of the Sahara are the Atlantic Ocean on the west, the 
Atlas... [DOC] [TLE] Sahara facts, information, pictures | Encyclopedia.com articles about ... [PAR] Sahara (shr) [Arab.,=desert], world's largest desert, c.3,500,000 sq mi (
9,065,000 sq ... and Tunisia; and the northern portions of Senegal, Mali, Chad, 
and Sudan.