The Algerian-Moroccan border
The boundary starts in the north on the Mediterranean Sea just west of Marsa Ben M’Hidi; it then proceeds overland toward the south via a series of irregular lines, veering slightly to the southeast.Near the Moroccan town of Figuig it veers sharply to the west, proceeding then in a broadly south-westerly direction via a series of straight and irregular lines. Upon reaching the Draa River the border then follows this for some distance, before veering sharply to the south, whereupon a straight north–south line proceeds for 116 km (72 mi) down to the Western Sahara tripoint.