Why did migrating groups settle in the Gambia River basin?

Migrating groups settled in the Gambia River basin primarily because it served as a refuge for people escaping the turmoil of western Sudanic wars, which began in the 12th century.1

Beyond its role as a sanctuary, the river basin offered specific geographical advantages that supported human habitation and agriculture:

• Agricultural Potential: While the swampy regions near the river are largely unsuitable for settlement, the flats of the middle and upper river are agriculturally valuable. The annual flooding of these fertile alluvial loams makes them ideal for intensive rice cultivation.2
• Strategic Location: Many villages were established on the boundary between the riverine flats and the higher sandstone uplands. This positioning allowed settlers to avoid the flooding of the lower slopes while remaining close to the fertile land, as well as to escape the increasing aridity found in the higher terrain.23
• Transportation: As one of the most navigable rivers in Africa, the Gambia River has historically functioned as a vital artery for transportation, facilitating movement between the interior and the coast.24