{{Short description|Tributary river in the country of Canada}} {{Infobox river | name = Tanzilla River | name_native = | name_native_lang = | name_other = | name_etymology = <!---------------------- IMAGE & MAP --> | image = | image_caption = | map = | map_size = | map_caption = | pushpin_map = British Columbia | pushpin_map_size = | pushpin_map_caption = Mouth of the Tanzilla River <!---------------------- LOCATION --> | subdivision_type1 = Country | subdivision_name1 = Canada | subdivision_type2 = Province | subdivision_name2 = British Columbia | subdivision_type3 = District | subdivision_name3 = Cassiar Land District | subdivision_type4 = | subdivision_name4 = | subdivision_type5 = | subdivision_name5 = <!---------------------- PHYSICAL CHARACTERISTICS --> | length = {{convert|140|km|abbr=on}}<ref name=length/> | discharge1_location = | discharge1_min = | discharge1_avg = {{convert|16.0|m3/s|cuft/s|abbr=on}}<ref name=watertool/> | discharge1_max = <!---------------------- BASIN FEATURES --> | source1 = Three Sisters Range | source1_location = Stikine Ranges | source1_coordinates = {{coord|58|10|26|N|129|29|51|W|display=inline}}<ref>Derived from BCGNIS, topographic maps, and [https://atlas.gc.ca/toporama/en/index.html Toporama]</ref> | source1_elevation = {{convert|2040|m|abbr=on}}<ref name=toporama/> | mouth = Stikine River | mouth_location = Grand Canyon of the Stikine | mouth_coordinates = {{coord|58|7|37|N|130|40|11|W|display=inline,title}}<ref name=bcgnis/><ref name=toporama/> | mouth_elevation = {{convert|295|m|abbr=on}}<ref name=toporama/> | progression = | river_system = | basin_size = {{convert|1833|km2|abbr=on}}<ref name=watertool/> | tributaries_left = Itsillitu Creek, Tsenaglode Creek, Gnat Creek | tributaries_right = Auguschidle Creek, Sixteen Mile Creek, Tatsho Creek, Zuback Creek | custom_label = Topo map | custom_data = NTS {{Canada NTS Map Sheet|104|J|2}}<br>NTS {{Canada NTS Map Sheet|104|J|5}}<br>NTS {{Canada NTS Map Sheet|104|J|7}}<br>NTS {{Canada NTS Map Sheet|104|J|8}} | extra = }} The '''Tanzilla River''' is a tributary of the Stikine River in northwest part of the province of British Columbia, Canada.<ref name=bcgnis>{{BCGNIS|17641|Tanzilla River}}</ref>

From its source in the Three Sisters Range the Tanzilla River flows roughly north and northwest to the vicinity of the community of Dease Lake, then turns west and southwest, flowing to the Stikine River in the Grand Canyon of the Stikine. The river's total length is roughly {{convert|140|km|mi|abbr=on}}.<ref name=length>Length measured using BCGNIS coordinates, topographic maps, and [https://atlas.gc.ca/toporama/en/index.html Toporama]</ref> The Tanzilla River's mean annual discharge is estimated at {{convert|16.0|m3/s|cuft/s|abbr=on}}.<ref name=watertool>{{cite web |url= https://nwwt.bcwatertool.ca |title= Northwest Water Tool |work= BC Water Tool |publisher= GeoBC, Integrated Land Management Bureau, Ministry of Agriculture and Lands, Government of British Columbia |accessdate= 25 October 2023}}</ref> Its watershed covers {{convert|1833|km2|abbr=on}}.<ref name=watertool/> The watershed's land cover is classified as 28.8% conifer forest, 27.3% shrubland, 24.4% mixed forest, 11.7% barren, 5.2% herbaceous, and small amounts of other cover.<ref name=watertool/>

The mouth of the Tanzilla River is located about {{convert|40|km|abbr=on}} northeast of the community of Telegraph Creek, British Columbia, about {{convert|53|km|abbr=on}} southwest of Dease Lake, British Columbia, and about {{convert|220|km|abbr=on}} east of Juneau, Alaska.

The Tanzilla River's watershed is within the traditional territory of the Tahltan First Nation, of the Tahltan people.<ref>{{cite web |url= https://tahltan.org/our-territory |title= Our Territory |publisher= Tahltan Central Government |accessdate= 25 October 2023}}</ref><ref>{{cite web |url= https://tahltan.ca/nation/territory |title= Dah Ki Mi — "Our House" |publisher= Tahltan Band Council |accessdate= 25 October 2023}}</ref>

==Geography== The Tanzilla River originates in the Three Sisters Range, whence it flows northwest toward the community of Dease Lake. It receives the waters of numerous unnamed tributaries and a few named ones. Gnat Creek joins from the south,<ref>{{BCGNIS|2590|Gnat Creek}}</ref> then Zuback Creek from the east,<ref>{{BCGNIS|25954|Zuback Creek}}</ref> Tsenaglode Creek from the southwest,<ref>{{BCGNIS|23853|senaglode Creek}}</ref> and Dalby Creek from the east,<ref>{{BCGNIS|7547|Dalby Creek}}</ref> before the Tanzilla River nears Dease Lake and turns to the southwest.<ref name=toporama/><ref name=mapbook/><ref name=topomap/><ref name=watertool/>

As the Tanzilla River nears Dease Lake its course is followed by the Stewart–Cassiar Highway, which goes to Dease Lake and beyond to the Yukon. Near Dease Lake the river flows by Tanzilla Butte and Tatsho Mountain.<ref>{{BCGNIS|17637|Tanzilla Butte}}</ref><ref>{{BCGNIS|18483|Tatsho Mountain}}</ref> After Dease Lake the Tanzilla River flows through wetlands in a meandering path, north of the Hotailuh Range.<ref>{{BCGNIS|18434|Hotailuh Range}}</ref> Telegraph Creek Road, which connects the community of Telegraph Creek to the Stewart-Cassiar Highway, follows the Tanzilla River from Dease Lake to the Stikine River. As the Tanzilla flows west and southwest toward the Stikine and through the Tanzilla Plateau, it receives many tributaries including Tatsho Creek,<ref>{{BCGNIS|18484|Tatsho Creek}}</ref> Sixteen Mile Creek,<ref>{{BCGNIS|37444|Sixteen Mile Creek}}</ref> Auguschidle Creek,<ref>{{BCGNIS|9855|Auguschidle Creek}}</ref> and Itsillitu Creek.<ref>{{BCGNIS|2408|Itsillitu Creek}}</ref><ref name=toporama/><ref name=mapbook/><ref name=topomap/><ref name=watertool/>

The lower Tanzilla River also flows by the Tahltan Indian reserve "Tatcho Creek 11",<ref>{{BCGNIS|64813|Tatcho Creek 11}}</ref> near the mouth of Tatsho Creek.<ref>{{cite web |url= https://fnp-ppn.aadnc-aandc.gc.ca/FNP/Main/Search/RVDetail.aspx?RESERVE_NUMBER=07660&lang=eng |website= Crown–Indigenous Relations and Northern Affairs Canada |publisher= Government of Canada |title= Iskut 6 Indian Reserve |accessdate= 28 October 2023}}</ref> Near its mouth on the Stikine, the Tanzilla River passes by the locality of Cariboo Meadows,<ref>{{BCGNIS|11185|Cariboo Meadows}}</ref> then enters Stikine River Provincial Park before emptying into the Stikine River in the Grand Canyon of the Stikine, just east of the mouth of the Tuya River.<ref name=toporama>{{cite web |url= http://atlas.gc.ca/toporama/en/index.html |title= Toporama (on-line map and search) |work= Atlas of Canada |publisher= Natural Resources Canada |accessdate= 25 October 2023}}</ref><ref name=mapbook>{{cite book |last1= Mussio |first1= Russell |last2= Mussio |first2= Wesley |title= Northern BC Backroad Mapbook |url=https://books.google.com/books?id=pBAFEAAAQBAJ&pg=PA106 |accessdate= 25 October 2023 |date= 2018 |publisher= Mussio Ventures |isbn= 978-1-926806-87-7 |page= 96}}</ref><ref name=topomap>{{cite map|url=https://volcano.si.edu/maps/GVAlaskaCanada/G910509-005.jpg|archive-url=https://web.archive.org/web/20210502220141/https://volcano.si.edu/maps/GVAlaskaCanada/G910509-005.jpg|title=Dease Lake, Cassiar District, British Columbia|scale=1:250,000|series=A 502|map=104 J|edition=2|type=Topographic map|publisher=Department of Energy, Mines and Resources|year=1977|language=en,fr|access-date=2023-10-22|archive-date=2021-05-02}}</ref>

==See also== *List of rivers of British Columbia

==References== {{reflist}}

Category:Cassiar Land District Category:Rivers of British Columbia Category:Stikine Country Category:Tahltan Category:Tributaries of the Stikine River