If savannah is the transitional ecosystem between desert and forest, the city of Kaédi is located in a region where desert and savannah meet. This is the Gorgol region of southern Mauritania. Located just north of the Senegal River, this is one of the few places in Mauritania where agriculture is a possible, but it is a far cry from classifying as a fertile area. Vast arid expanses punctuated by tiny villages dominate the landscape for hundreds of kilometers along the river. One of the major settlements along this strip…