Qualla: The Guinea Highlands: West Africa's Water Tower

The Guinea Highlands: West Africa's Water Tower: Introduction

Fri, 06 Mar 2026 00:00:00 GMT

More than half of West Africa's principal rivers begin on the same plateau. The Niger, which runs 4,180 kilometers through five countries. The Senegal, which draws the line between the Sahel and the tropics. The Gambia, which threads an entire nation like a wet ribbon. All of them rise in the Guinea Highlands, a forested mountainous spine stretching from central Guinea through northern Sierra Leone and Liberia to western Ivory Coast. In Guinea this upland is known as the Dorsale Guineenne -- the Guinean Backbone -- and the anatomical metaphor is apt. Remove this plateau from West Africa's geography and the rivers die, the empires they sustained vanish retroactively, and the agricultural systems feeding tens of millions of people collapse. Everything downstream depends on what happens here.

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The Guinea Highlands: West Africa's Water Tower: Anatomy of a Backbone

Fri, 06 Mar 2026 00:00:00 GMT

The Guinea Highlands are not a single mountain range but a collection of ranges, massifs, and plateaus that together form an elevated region mostly lying above 300 meters. The Fouta Djallon highlands occupy central Guinea, a series of stepped sandstone plateaus carved by gorges a...

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The Guinea Highlands: West Africa's Water Tower: The Rivers That Made Empires

Fri, 06 Mar 2026 00:00:00 GMT

Water runs off the Guinea Highlands in every direction, and each river it produces has shaped a civilization. The Niger begins in the southeastern highlands near the Sierra Leone border, then runs counterintuitively northeast toward the Sahara, its great bend sustaining the empir...

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The Guinea Highlands: West Africa's Water Tower: Ancient Rock, Living Forest

Fri, 06 Mar 2026 00:00:00 GMT

Geologically, the Guinea Highlands are built from the same ancient basement rocks that underlie much of West Africa: granites, schists, and quartzites that have resisted billions of years of erosion. The Simandou Range alone holds one of the world's largest untapped iron ore depo...

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The Guinea Highlands: West Africa's Water Tower: The Kpelle and the Coffee

Fri, 06 Mar 2026 00:00:00 GMT

The Guinea Highlands are not wilderness. The Guerze, known more widely as the Kpelle, and the Mano peoples have inhabited these forests for centuries, shaping the landscape through farming, hunting, and trade. Yomou, the chief market town of the highland region in Guinea, serves ...

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The Guinea Highlands: West Africa's Water Tower: Peaks and Their Measures

Fri, 06 Mar 2026 00:00:00 GMT

The Guinea Highlands contain some of the most significant summits in West Africa, and their heights tell a story of geological variety. Mount Bintumani leads at 1,945 meters, its broad summit plateau grass-covered and wind-exposed. Sankan Biriwa, also in Sierra Leone, reaches 1,8...

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