Related by context. Frequent words. (Click for all words.) 54 Bahr al 53 Lake Turkana 53 Lake Natron 53 Omo River 51 biodiversity hotspot 50 Lake Tanganyika 49 Nile basin 49 Congos 49 alluvial deposits 49 Bahr el Ghazal 49 Namib Desert 48 hydro electric dams 48 semi nomadic 48 Mudug 48 fertile soils 47 Okavango Delta 47 Nile delta 47 sq.km. 47 Great Rift Valley 47 Kufra 47 fertile plains 47 Mau forest 47 Mali Burkina Faso 46 biologically diverse 46 arid lands 46 wetland 46 Dinka tribe 46 Kapoeta 46 mangrove forest 46 headwaters 46 #km# [004] 46 sqkm 46 semi arid 45 savanna 45 freshwater lake 45 fertile farmland 45 Tana River 45 Nuba 45 biodiverse 45 Zambezi river 45 freshwater marshes 45 Southern Kordofan 45 fertile lands 45 savannahs 45 biosphere reserve 45 Equateur province 45 Cahora Bassa 45 sq.km 45 Upper Nile 45 Sahelian 45 Mauritania Mali 45 Jebel 44 km ² 44 palm plantations 44 headwater 44 Brahmaputra River 44 disputed Abyei 44 swamps 44 Nimule 44 Nuba Mountains 44 Lake Kivu 44 Kassala 44 Kalahari Desert 44 Luangwa 44 Ogaden region 43 river basin 43 agriculturally rich 43 Nile 43 Katanga province 43 Jebel Marra 43 Tawila 43 delta 43 Uganda Rwanda Burundi 43 freshwater wetlands 43 tropical forest 43 ecologically fragile 43 Virunga 43 basin 43 escarpments 43 savannah 43 freshwater 43 wetlands 43 tidal creeks 43 Sudan 43 Caspian basin 43 Equatorial 43 ecologically sensitive areas 43 largely uninhabited 43 limestone caves 43 riverine 43 biodiversity hotspots 43 Kalahari desert 43 Tshikapa 43 arid 42 bushveld 42 Ruvuma 42 Afar region 42 bio diversity 42 Ngorongoro Crater 42 Ilaje 42 river deltas