The Falémé arises in northern Guinea and flows in a north - northeast direction to Mali , turing northwest it forms the border between Mali and Senegal , then becomes a tributary of the Sénégal River .
The Falémé arises in northern Guinea and flows in a north - northeast direction to Mali , forming a short portion of the border between Guinea and Senegal . 
 It turns north and then forms a portion of the border between Mali and Senegal , then becomes a tributary of the Sénégal River .