Which archaeological site in Senegal and Gambia contains four groups of stone circles?

The archaeological site in Senegal and The Gambia containing four major groups of stone circles is the Senegambian stone circles, also called the Stone Circles of Senegambia. The four groups are Wassu and Kerr Batch in The Gambia, and Wanar and Sine Ngayène in Senegal.

These monuments form an extensive megalithic and funerary landscape. Most were built from laterite, a locally available iron-rich stone, shaped into upright pillars and arranged in circles, double circles, rows, or isolated “frontal” stones. Excavations have found burials, pottery, iron objects, and other grave goods, indicating that the monuments were closely connected with mortuary practices.

Researchers generally date construction across a long period, from around the 3rd century BCE to the 16th century CE, although individual circles have narrower dates. The larger landscape contains more than 1,000 circles and tumuli, showing that construction required organized labor and substantial technical knowledge.

UNESCO inscribed the Stone Circles of Senegambia as a World Heritage Site in 2006. A common mistake is treating the four named groups as four separate answers; together they make up the transnational Senegambian site.