The route linked Sijilmasa in the northern Sahara to Walata, the terminus of caravans in Mali. The Maqqari family invested in its maintenance by digging wells and paying guides and nomads, seeking to provide security for merchants. Its organization demonstrates that trans-Saharan commerce depended not only on goods and markets but also on sustained investment in water, protection and local expertise.

A caravan assembled at Sijilmasa under a Massufa leader, members of the tribe having served as caravan guides for centuries. After twenty-five days it reached Taghaza, a salt-mining settlement where houses were built from salt and no food was produced locally. From there, travelers carried water for the ten-day journey to Tasarahla, probably Bir al-Ksaib, before entering the most difficult desert stage toward Walata.

The final stage required careful coordination. A Massufa scout traveled ahead to warn Walata of the caravan’s approach, while people from Walata brought water several days into the desert to meet exhausted travelers. The scout also carried letters requesting lodgings and commercial assistance, illustrating the social networks that made long-distance trade possible.

The route shifted eastward from earlier western corridors. Ma'qil Arab control over Sus and Wadi Dar'a reduced security, while Taghaza became the major salt source for the western Sudan and Walata replaced Awdaghust and Kumbi as the main southern terminus. By the later fourteenth century, traffic increasingly ran through Tamentit and Taghaza toward Timbuktu rather than Walata.