Related by context. Frequent words. (Click for all words.) 57 Tigris rivers 56 Syr Darya 55 Zagros Mountains 54 Euphrates 54 Indravati 53 headwater 53 rivers 52 salinization 52 Euphrates rivers 52 tributary rivers 51 Indus basin 51 Ethiopian highlands 50 Damming 49 wadis 49 Yangtse 49 Amu Darya 49 Evros River 49 Shatt Al 49 navigable rivers 48 tributaries 48 headwaters 48 Quake jolts 47 Arvand River 47 river drainages 47 fertile crescent 47 Deir Ezzor 47 Barrages 47 Dalyan 47 arid deserts 47 Indus valley 47 Omo River 47 Hasbani 47 Lake Kinneret 47 tributary 47 Azraq 47 Gediz 47 hydro electric dams 46 upper riparian 46 irrigational 46 Nile basin 46 Khuzestan Province 46 Brahmaputra River 46 Manavgat 46 Hasaka 46 Douro River 46 karez 46 groundwater aquifer 46 Ajloun 45 Garonne 45 Urartu 45 creeks rivers 45 Tigris 45 Huaihe 45 freshwater springs 45 Dnieper 45 lakes 45 Ghadames 45 Swamps 45 heavily polluted 45 Wullar 45 Ganga Yamuna 45 tidal estuary 45 basin 45 Nile delta 45 river Brahmaputra 45 Bosphorous 45 Wadi al 45 fertile soils 44 Subarnarekha 44 Allegheny Monongahela 44 Shat al 44 Lake Lanao 44 Eurasian landmass 44 Mesopotamia 44 Caspian Sea basin 44 Pong Dam 44 river 44 Uzbekistan Tajikistan 44 Southeastern Anatolia 44 Nile 44 norther 44 Euphrates valley 44 Transboundary 44 reservoirs 44 Azerbaijan Turkmenistan 44 Boat sinks 44 Bergama 44 Wassit 44 Rushikulya 44 Three Gorges Reservoir 44 fertile plains 44 river catchments 44 riversides 44 tributary streams 44 Khiva 44 Evros 44 lush valleys 44 Rivanna River 44 blackwater 44 Scythians 44 Al Faw peninsula