Ouadane
| Ouadane Arabic: وادان | |
|---|---|
| Commune and town | |
| Old tower, Ouadane | |
| Coordinates: 20°55′N 11°37′W / 20.917°N 11.617°W | |
| Country | Mauritania | 
| Region | Adrar Region | 
| Area | |
|  • Total | 118,210 km2 (45,640 sq mi) | 
| Elevation | 407 m (1,335 ft) | 
| Population  (2023 census) | |
|  • Total | 3,833 | 
| • Density | 0.032/km2 (0.084/sq mi) | 
| Official name | Ancient Ksour of Ouadane, Chinguetti, Tichitt and Oualata | 
| Type | Cultural | 
| Criteria | iii, iv, v | 
| Designated | 1996 (20th session) | 
| Reference no. | 750 | 
| Region | Arab States | 
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 kilometres (58 mi) 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.
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 whole Ouadane commune has a total size of 118,210 square kilometres (45,640 sq mi), mostly consisting of desert. The main town is located in the south-west of the commune.