Geography of Lesotho (Senqu) rivers (at the South African border), which at is the highest lowest point of any country. Lesotho is the only independent state in the world that lies entirely above in elevation. The highest point is the peak of the Thabana Ntlenyana mountain, which reaches an elevation of . Over 80% of Lesotho lies above . Even though very little of Lesotho is covered in water, the rivers that run across the country are an important part of Lesotho's economy. Much of the country's export income comes from water, and much of its power comes from hydroelectricity. The Orange River
Geology of Lesotho yield and frequent springs. Steep terrain, rain and snow melt mean that Lesotho has a high risk of landslides. Lesotho has extensive diamond deposits in both kimberlites and alluvial gravel. The country has the highest concentration of kimberlite bodies in the world—a total of more than 400, including 343 dikes, 39 pipes and 23 blows. Northern Lesotho has an average of one kimberlite body for every 10 square kilometers. In spite of the large deposits, very few sites are mined and research is ongoing into alluvial deposits. The Karoo Supergroup hosts low-grade uranium and likely coal and coal-bed methane, although