Geography of Lesotho rises in the Drakensberg mountains in northeastern Lesotho and flows across the entire length of the country before exiting to South Africa at the Mohale's Hoek District in the southwest. The Caledon River marks the northwestern part of the border with South Africa. Other rivers include the Malibamatso, Matsoku and Senqunyane. The bedrock of Lesotho belongs to the Karoo Supergroup, consisting mostly of shale and sandstone. Peatlands can be found in the highlands of Lesotho, most extensively in the mountainous escarpment near the country's eastern border. The summit of Thabana Ntlenyana is partially encircled by bogs. Solifluction deposits, blockfields, blockstreams
Demographics of Lesotho total urban population. The sex distribution is 982,133 male and 1,025,068 female, or around 96 males for each 100 females. The average population density in the country is around 66,1 people per square kilometer. The density is lower in the Lesotho Highlands than in the western lowlands. Although the majority of the population—56.1 percent—is between 15 and 64 years of age, Lesotho has a substantial youth population numbering around 37.8 percent. The annual population growth rate is estimated at 0.13% According to the total population was in , compared to only 734 000 in 1950. The proportion of children below