Inner Niger Delta South of Sahara Desert, Mali13.9N 5.4W
The green area at the bottom center is the Inner Niger Delta, also known as the Macina. It is a large area of lakes and floodplains in the semi-arid Sahel area of central Mali, just south of the Sahara desert (visible as a tan, sandy expanse occupying the upper part of the image).
The delta consists of the middle course of the Niger River, between the bifurcated Niger and its tributary, the Bani, which from here run north towards the desert. The Niger is the longest river in West Africa.