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Rio Negro,Q703038[*],Arroyo Boycuá[*][[Arroyo Boycuá (river in Uruguay)|]],Arroyo Chapicuy Grande[*][[Arroyo Chapicuy Grande (river in Uruguay)|]],Q703215[*],Q703226[*],Q703276[*],Arroyo Negro[*][[Arroyo Negro (rio in Uruguay, border between Paysandú and Rio Negro departments)|]],Arroyo Román Grande[*][[Arroyo Román Grande (stream in Rio Negro Department, Uruguay)|]],Arroyo Yacuy[*][[Arroyo Yacuy (river in Artigas, Uruguay)|]],Arroyo de la Agraciada[*][[Arroyo de la Agraciada (stream)|]],Q703829[*],San Salvador River[*][[San Salvador River (river in Soriano Department, Uruguay)|]],Rio Quaraí[*][[Rio Quaraí (river)|]],Río Arapey Grande[*],Rio Pelotas[*][[Rio Pelotas (river in Rio Grande do Sul / Santa Catarina, Brazil)|]],Rio Lajeado Macuco[*][[Rio Lajeado Macuco (river in Brazil)|]],Rio Ibicuí[*][[Rio Ibicuí (river in Brazil)|]],Río Mocoretá[*][[Río Mocoretá (river in Argentina)|]],Rio da Várzea[*][[Rio da Várzea (river in Rio Grande do Sul, Brazil)|]],Rio Canoas[*][[Rio Canoas (river in Santa Catarina, Brazil; tributary of Uruguay River)|]],Rio Barra Grande[*][[Rio Barra Grande (river in Santa Catarina, Brazil)|]],Rio Chalana[*][[Rio Chalana (river in Brazil)|]],Rio Chapecó[*][[Rio Chapecó (river in Santa Catarina, Brazil)|]],Rio Comandaí[*][[Rio Comandaí (river in Rio Grande do Sul, Brazil)|]],Rio Guarita[*][[Rio Guarita (river in Rio Grande do Sul, Brazil)|]],Rio Ijuí[*][[Rio Ijuí (river in the Brazilian state of Rio Grande do Sul)|]],Rio Iracema[*][[Rio Iracema (river in Santa Catarina, Brazil)|]],Rio Irani[*][[Rio Irani (river in Santa Catarina, Brazil)|]],Rio Jacutinga[*][[Rio Jacutinga (river in Brazil)|]],Rio Macaco Branco[*][[Rio Macaco Branco (river in Brazil)|]],Rio Passo Fundo[*][[Rio Passo Fundo (river in Rio Grande do Sul, Brazil)|]],Río Pepirí Guazú[*][[Río Pepirí Guazú (river in Argentina & Brazil)|]],Rio Rancho Grande[*][[Rio Rancho Grande (river in Santa Catarina, Brazil)|]],Rio Santa Cruz[*][[Rio Santa Cruz (river in Santa Catarina, Brazil)|]],Rio Santa Rosa[*][[Rio Santa Rosa (river in Rio Grande do Sul, Brazil)|]],Rio Santo Cristo[*][[Rio Santo Cristo (river in Rio Grande do Sul, Brazil)|]],Rio Taquari[*][[Rio Taquari (river in Rio Grande do Sul, Brazil)|]],Rio Toropi[*][[Rio Toropi (river in Rio Grande do Sul, Brazil)|]],Rio Turvo[*][[Rio Turvo (river in Rio Grande do Sul, Brazil; tributary of Uruguay River)|]],Rio do Peixe[*][[Rio do Peixe (river in Santa Catarina, Brazil; tributary of Uruguay River)|]],Río Gualeguaychú[*][[Río Gualeguaychú (river in Argentina)|]],Río Miriñay[*][[Río Miriñay (river in Argentina)|]],Aguapey River[*][[Aguapey River (river in Argentina)|]],Rio das Antas[*][[Rio das Antas (river in Santa Catarina, Brazil)|]],Arroyo Pos Pos[*][[Arroyo Pos Pos (watercourse in Argentina)|]],Arroyo Chafariz[*][[Arroyo Chafariz (watercourse in Argentina)|]],Arroyo Chico Alférez[*][[Arroyo Chico Alférez (watercourse in Argentina)|]],Arroyo Chimiray[*][[Arroyo Chimiray (watercourse in Argentina)|]],Arroyo Ciriaco[*][[Arroyo Ciriaco (watercourse in Argentina)|]],Arroyo Cuay Grande[*][[Arroyo Cuay Grande (watercourse in Argentina)|]],Arroyo El Tala[*][[Arroyo El Tala (watercourse in Argentina)|]],Arroyo Itacaruaré[*][[Arroyo Itacaruaré (watercourse in Argentina)|]],Arroyo Juan Asencio[*][[Arroyo Juan Asencio (watercourse in Argentina)|]],Arroyo Mandisoví Grande[*][[Arroyo Mandisoví Grande (watercourse in Argentina)|]],Arroyo Mandisoví Chico[*][[Arroyo Mandisoví Chico (watercourse in Argentina)|]],Arroyo Mármol[*][[Arroyo Mármol (watercourse in Argentina)|]],Arroyo Once Vueltas[*][[Arroyo Once Vueltas (watercourse in Argentina)|]],Arroyo Perucho Verna[*][[Arroyo Perucho Verna (watercourse in Argentina)|]],Arroyo Pindaití[*][[Arroyo Pindaití (watercourse in Argentina)|]],Arroyo San Francisco Grande[*][[Arroyo San Francisco Grande (river in Uruguay)|]],Arroyo Tapebicuá[*][[Arroyo Tapebicuá (watercourse in Argentina)|]],Arroyo Timboy[*][[Arroyo Timboy (watercourse in Argentina)|]],Arroyo Urquiza[*][[Arroyo Urquiza (watercourse in Argentina)|]],Arroyo Yabotí Guazú[*][[Arroyo Yabotí Guazú (watercourse in Argentina)|]],Arroyo Yatay[*][[Arroyo Yatay |]],Arroyo Yeruá[*][[Arroyo Yeruá (watercourse in Argentina)|]],Arroyo Yuquerí Grande[*][[Arroyo Yuquerí Grande (watercourse in Argentina)|]],Q5706253[*],Arroyo Ñancay[*][[Arroyo Ñancay (watercourse in Argentina)|]],Q6115213[*],Rio Palmitos[*][[Rio Palmitos (river in Brazil)|]],Rio São Domingos[*][[Rio São Domingos (river in Santa Catarina, Brazil)|]],Icamaquã River[*][[Icamaquã River (river in Rio Grande do Sul, Brazil)|]],Río Paraná Bravo[*][[Río Paraná Bravo (watercourse in Argentina)|]],Río Daymán[*],Rio Queguay Grande[*],Arroyo Farrapos[*][[Arroyo Farrapos (stream in Río Negro Department, Uruguay, tributary of Río Uruguay)|]],Arroyo Sauce del Uruguay[*],Cañada de las Mulas[*],Arroyo San José[*],Cañada del Tigre[*],Q133294513[*],Q133294565[*],Q133295631[*] ,Arroyo Malo[*]
Uruguay este un fluviu cu lungimea de 1790km situat în Brazilia, Argentina, Uruguay, (America de Sud). El are izvorul în Serra Geral (Brazilia) la altitudinea de 1800 m deasupra n.m., având suprafața bazinului de colectare 297.199km², afluentul principal al lui fiind Rio Negro, Uruguay. Este navigabil până la Paysandú împreună cu Rio Parana formează fluviul Río de la Plata.
