{{Infobox river | name = Tonguo | other_name = Тонгуо / Тоҥуо | image = Tonguo 2019-07-21-23 59 Sentinel-2 L2A.jpg | image_caption = Confluence with the Vilyuy Sentinel-2 image | pushpin_map = Russia Sakha Republic | pushpin_map_size = | pushpin_map_caption= Mouth location in Yakutia, Russia | source1_location = Lena Plateau | source1_coordinates = {{coord|62|23|29|N|121|03|13|E|source:wikidata-and-enwiki-cat-tree_region:RU}} | source1_elevation = | mouth = Vilyuy | mouth_coordinates = {{coord|63|33|26|N|119|52|52|E|source:wikidata-and-enwiki-cat-tree_region:RU}} | mouth_elevation = | progression = {{RVilyuy}} | subdivision_type1 = Country | subdivision_name1 = Yakutia, Russia | length = {{convert|317|km|abbr=on}} | discharge1_avg = | basin_size = {{convert|6940|km2|abbr=on}} }} The '''Tonguo''' ({{langx|ru|Тонгуо}}; {{langx|sah|Тоҥуо}}) is a river in Yakutia (Sakha Republic), Russia. It is a right hand tributary of the Vilyuy, with a length of {{convert|317|km|mi}} and a drainage basin area of {{convert|6940|km2|mi2}}.<ref name=gvr>{{GVR|253177|Река Тонгуо)}}</ref>
The river flows across uninhabited territory of Verkhnevilyuysky District. Its confluence with the Vilyuy lies approximately {{convert|30|km|abbr=on}} to the northwest of Verkhnevilyuysk.<ref name="GЕ">Google Earth</ref>
== Course == The Tonguo begins on the northern slopes of the Lena Plateau. It flows roughly in a northward and northwestward direction along most of its course. After it descends into the Central Yakutian Lowland it meanders strongly. In its last stretch the Tonguo bends to the NNE. Finally it joins the right bank of the Vilyuy {{convert|463|km|mi}} from its mouth. The river freezes in mid October and stays under ice until the second half of May.<ref name="STMa"/><ref name="STMb"/><ref>[https://web.archive.org/web/20080613135237/http://www.nature.ykt.ru/RIAC/Yakutia_geogr/018.htm#%D0%A2%D0%BE%D0%BD%D0%B3%D1%83%D0%BE Nature.ykt]</ref>
The largest tributaries of the Tonguo are the {{convert|76|km|mi}} long Loglor (Логлор) from the right and the {{convert|94|km|mi}} long Tonguochan (Тоҥуочаан) from the left.<ref name="STMa">{{cite web|url=https://maps.vlasenko.net/smtm1000/p-51_52.jpg|title=P-51-52 Topographic Chart (in Russian)|access-date=15 April 2023}}</ref><ref name="STMb">{{cite web|url=https://maps.vlasenko.net/smtm1000/p-49_50.jpg|title=P-49-50 Topographic Chart (in Russian)|access-date=15 April 2023}}</ref><ref name=gvr/>
==See also== *List of rivers of Russia *Pyotr Toburokov
==References== {{Reflist}}
==External links== *[http://ohota-v-yakutii.ru/ohota-i-ribalka-video-.html Fishing & Tourism in Yakutia] *[https://epic.awi.de/id/eprint/25993/1/Gerstmann10.pdf Changes of Boreal Vegetation in Permafrost Areas of Central Yakutia] Category:Rivers of the Sakha Republic Category:Central Yakutian Lowland Category:Verkhnevilyuysky District