What is Río Negro (Uruguay)?
{{Infobox river | name = Río Negro | name_native = | name_native_lang = | name_other = | name_etymology = | nickname = | image = Río_Negro_Paso_del_Puerto.jpg | image_size = | image_caption = The Río Negro river at Paso del Puerto | image_alt =The Río Negro river at Paso del Puerto | map = Uruguay mapa.png | map_size = | map_caption = Course of the Río Negro river | map_alt = | pushpin_map = | pushpin_map_size = | pushpin_map_caption= | pushpin_map_alt = | subdivision_type1 = [[Country]] | subdivision_name1 = [[Brazil]], [[Uruguay]] | subdivision_type2 = | subdivision_name2 = | subdivision_type3 = | subdivision_name3 = | subdivision_type4 = | subdivision_name4 = | subdivision_type5 = | subdivision_name5 = | length = {{convert|750|km|abbr=on}} | width_min = | width_avg = | width_max = | depth_min = | depth_avg = | depth_max = | discharge1_location= Palmar Dam | discharge1_min = | discharge1_avg = {{Convert|722|m3/s|ft3/s|abbr=on}} | discharge1_max = | source1 = | source1_location = Bagé, [[Rio Grande do Sul]], [[Brazil]] | source1_coordinates= {{coord|33|25|34|S|58|24|32|W}} | source1_elevation = | mouth = | mouth_location = [[Río Negro Department]], [[Uruguay]] | mouth_coordinates = {{coord|33|25|34|S|58|24|32|W}} | mouth_elevation = | progression = | river_system = | basin_size = {{Convert|70714|km2|mi2|abbr=on}} | basin_landmarks = | basin_population = | tributaries_left = [[Yí River|Yí]] | tributaries_right = [[Tacuarembó River|Tacuarembó]] | waterbodies = | waterfalls = | bridges = | ports = | custom_label = | custom_data = | extra = }} The '''Río Negro''' (''Black River'') is the most important river in [[Uruguay]]. It is a left [[tributary]] of the [[Uruguay Riv