Yagi Ridge

{{Short description|Mountain ridge in the country of Canada}} {{Infobox mountain | name = Yagi Ridge | image = | image_caption = | elevation_m = 2243 | elevation_ref = <ref name="KF">Elevation and coordinates derived from [[Google Earth]].</ref> | country=[[Canada]] | region_type = [[Provinces and territories of Canada|Province]] | region = [[British Columbia]] | district = [[Cassiar Land District]]<ref name="BCGN">{{BCGNIS|24767|Yagi Ridge}}</ref> | range = [[Spectrum Range]]<ref>{{cite map|url=https://volcano.si.edu/maps/GVAlaskaCanada/G910509-006.jpg|archive-url=https://web.archive.org/web/20210502071600/https://volcano.si.edu/maps/GVAlaskaCanada/G910509-006.jpg|title=Telegraph Creek, Cassiar Land District, British Columbia|scale=1:250,000|series=104 G|map=A 502|edition=3|type=Topographic map|publisher=[[Department of Energy, Mines and Resources]]|year=1989|language=en,fr|access-date=2021-09-25|archive-date=2021-05-02}}</ref> | map = Canada British Columbia | map_caption = Location in British Columbia | label_position = below | coordinates = {{coord|57|23|53.06|N|130|41|51.26|W|type:mountain_scale:100000|format=dms|display=inline,title}} | coordinates_ref= <ref name="KF"/> | topo_maker = [[National Topographic System|NTS]] | topo_map = {{Canada NTS Map Sheet|104|G|7}}<ref name="BCGN"/> | type = | age = | last_eruption = | first_ascent = | easiest_route = }} '''Yagi Ridge''' is a [[mountain]] [[ridge]] extending northwest from the middle of the [[Spectrum Range]] at the southern end of the [[Mount Edziza volcanic complex]] in northwestern [[British Columbia]], Canada. It is bounded on the north by Nagha Glacier and [[Nagha Creek]] valley, on the south by Yeda Creek on the [[Arctic Lake Plateau]] and on the west by [[Mess Creek]] valley.<ref name="Souther">{{cite map|last1=Souther|first1=J. G.|author-link1=Jack Souther|title=Geology, Mount Edziza Volcanic Complex, British Columbia|map=1623A|scale=1:50,000|type=[[Geological map]]|cartography=M. Sigouin, [[Geological Survey of Canada]]|publisher=[[Energy, Mines and Resources Canada]]|year=1988|language=en|doi=10.4095/133498|doi-access=free}}</ref> Yagi Ridge reaches an elevation of {{convert|2243|m|ft|abbr=off}} at the head of Nagha Glacier where its eastern end adjoins to the Spectrum Range just northwest of [[Yeda Peak]].<ref name="KF"/><ref name="Souther"/>

The ridge is at the southern end of [[Mount Edziza Provincial Park]] and is named after [[Kenzō Yagi]], a Japanese [[volcanologist]] who traversed it with Canadian volcanologist [[Jack Souther]] during a visit to Canada in 1966.<ref name="BCGN"/><ref name="Souther2">{{Cite report|last1=Souther|first1=J. G.|author-link1=Jack Souther|title=The Late Cenozoic Mount Edziza Volcanic Complex, British Columbia| work=[[Geological Survey of Canada]]|publisher=Canada Communication Group|series=Memoir 420|year=1992|page=320|isbn=0-660-14407-7|doi=10.4095/133497|doi-access=free}}</ref> Yagi also means [[mountain goat]] in the Japanese language which exist in abundance around the ridge.<ref name="Souther2"/>

==Geology== The base of Yagi Ridge is covered with glacial, [[scree|talus]] and landslide deposits. The oldest rocks comprising the ridge are [[Miocene]] [[alkali basalt]] flows of the [[Raspberry Formation]] which are exposed on its southwestern side. Overlying the Raspberry Formation are [[Pliocene]] alkali basalt flows of the Kounugu Member of the [[Nido Formation]] which are exposed on the western and southwestern sides of Yagi Ridge. The dominant rocks comprising Yagi Ridge are Pliocene [[comendite]], [[pantellerite]] and pantelleritic [[trachyte]] of the Spectrum Formation which are mainly in the form of [[lava dome]]s and lava flows; [[hydrothermally altered]] vent [[breccia]] overlies these [[volcanic rock]]s locally.<ref name="Souther"/>

==See also== *[[Volcanism of the Mount Edziza volcanic complex]]

==References== {{reflist}}

==External links== *{{cite cgndb|id=JBSCM|title=Yagi Ridge}}

[[Category:Ridges of the Mount Edziza volcanic complex]] [[Category:Spectrum Range]] [[Category:Miocene British Columbia]]