Chinguetti (Arabic: شنقيط Šenqīṭ) is a ksar or medieval trading centre in northern Mauritania, located on the Adrar Plateau east of Atar.
Founded in the 13th century as the center of several trans-Saharan trade routes, this small city continues to attract a handful of visitors who admire its spare architecture, scenery and ancient libraries. The city is seriously threatened by the encroaching desert; high sand dunes mark the western boundary and several houses have been abandoned to the sand.
The indigenous Saharan architecture of older sectors of the city features houses constructed of reddish dry-stone and mud-brick techniques, with flat roofs timbered from palms. Many of the older houses feature hand-hewn doors cut from massive ancient acacia trees, which have long disappeared from the surrounding area. Many homes include courtyards or patios that crowd along narrow streets leading to the central mosque.
Notable buildings in the town include The Friday Mosque of Chinguetti, an ancient structure of dry-stone construction, featuring a square minaret capped with five ostrich egg finials; the former French Foreign Legion fortress; and a tall watertower. The old quarter of the Chinguetti has five important manuscript libraries of scientific and Qur'anic texts, with many dating from the later Middle Ages.
Ouadane or Wādān (Arabic: وادان) is a small town in the desert region of central Mauritania, situated on the southern edge of the Adrar Plateau, 93 km northeast of Chinguetti. The town was a staging post in the trans-Saharan trade and for caravans transporting slabs of salt from the mines at Idjil. A Portuguese trading post was established in 1487, but was probably soon abandoned. The town declined from the sixteenth century and most of the town now lies in ruins.
The old town, a World Heritage Site, though in ruins, is still substantially intact, while a small modern settlement lies outside its gate.
Ouadane is the closest town to the Richat Structure, a massive circular landmark visible from space.
The early history of Ouadane is uncertain but it is possible that the town prospered from the trans-Saharan gold trade. In the middle of the 11th century, the Arabic geographer al-Bakri described a trans-Saharan route that ran between Tamdoult near Akka in Morocco to Aoudaghost on the southern edge of the Sahara. This route was used for the transport of gold during the time of the Ghana Empire. In his account al-Bakri mentioned a series of place names but these have not been identified and historians have suggested several possible routes. Raymond Mauny proposed a route that passed through Ouadane but Suzanne Daveau later argued in favour of a more direct route that crossed the Adrar escarpment to the east of the town. The volume of caravan traffic would have declined from the beginning of the 13th century when the oasis town of Oualata located 360 km to the east replaced Aoudaghost as the southern terminus of the trade route.