Input (grade 13): The massif's valleys open to the Tamesna plain on the east, to the Telemsi fosse on the west, to the western basin of the Azaouak valley on the south, and to the Tanezrouft on the north.
Output (grade 4): The Tamesna Plain is to the east. The Telemsi Fosse is to the west The low, western part of the Azaouak Valley is to the south.