{{Short description|Mountain in Canterbury, New Zealand}} {{Use New Zealand English|date=December 2024}} {{Use dmy dates|date=December 2024}} {{Infobox mountain | name = Mount Edgar Thomson | image = Mount Edgar Thomson.jpg | image_caption = Southeast aspect | elevation_m = 2379 | elevation_ref =<ref name=topomap>[https://www.topomap.co.nz/NZTopoMap/nz26080/Mount-Edgar-Thomson/Canterbury ''Mount Edgar Thomson, Canterbury''], NZTopoMap, Retrieved 26 December 2024.</ref><ref name=peakbagger>{{cite peakbagger|pid=93610|name=Mount Edgar Thomson, New Zealand|access-date=26 December 2024}}</ref> | prominence_m = 206 | prominence_ref =<ref name=peakbagger/> | isolation_km = 2.04 | isolation_ref =<ref name=peakbagger/> | parent_peak = | etymology = Edgar Thomson | native_name = | range = Southern Alps<br />Ben Ohau Range<ref name=climbnz/> | part_type = Protected area | part = Aoraki / Mount Cook National Park | country = New Zealand | location = South Island | region = Canterbury | region_type = Region | map = New Zealand | map_caption = Location in New Zealand | label_position = bottom | coordinates = {{coord|43|46|38|S|170| 03|51|E|type:mountain_region:NZ|display=inline,title}} | coordinates_ref =<ref name=peakbagger/> | mapframe = yes | mapframe-zoom = 8 | mapframe-caption = Interactive map of Mount Edgar Thomson | topo = NZMS260 ''H36''<ref name=NZGB>[https://gazetteer.linz.govt.nz/place/30986 ''Mount Edgar Thomson''], New Zealand Gazetteer, Retrieved 26 December 2024.</ref><br />Topo50 ''CB08''<ref name=climbnz/> | age = | rock = | easiest_route = South Ridge<ref name=climbnz/> | first_ascent = April 1915 }}
'''Mount Edgar Thomson''' is a {{convert|2379|metre|ft|adj=mid|-elevation|abbr=off}} mountain in the Canterbury Region of New Zealand.
==Description== Mount Edgar Thomson is set in the Ben Ohau Range of the Southern Alps and is situated in the Canterbury Region of South Island.<ref name=climbnz/> This peak is located {{convert|5.5|km|mi}} south-southwest of Mount Cook Village in Aoraki / Mount Cook National Park. Precipitation runoff from the mountain drains east to the Tasman River via Hoophorn and Birch Hill streams, whereas the west slope drains into headwaters of the Dobson River.<ref name=NZGB2>[https://gazetteer.linz.govt.nz/place/19701 ''Dobson River''], New Zealand Gazetteer, Retrieved 26 December 2024.</ref> Topographic relief is significant as the summit rises {{convert|1380.|m|ft|abbr=off}} above Hoophorn Stream in 1.5 kilometres. The nearest higher peak is Mount Sealy, two kilometres to the northwest.<ref name=peakbagger/> The first ascent of the summit was made in April 1915 by Jane Thomson and Conrad Kain.<ref name=climbnz/> The mountain's toponym was applied by Jane Thomson to honour her only child, Edgar (1881–1904), who had died in 1904 at age 23 from a football injury.<ref name=climbnz/><ref>[https://teara.govt.nz/en/biographies/3t34/thomson-jane ''Story: Thomson, Jane''], Te Ara – The Encyclopedia of New Zealand, Retrieved 26 December 2024.</ref> Edgar Thomson died at the Wellington Hospital after sustaining a head injury while playing a rugby match.<ref>[https://trove.nla.gov.au/newspaper/article/14656816 ''The Sydney Morning Herald''], Friday 17 June 1904, trove.nla.gov.au, Retrieved 26 December 2024.</ref>
==Climbing== Climbing routes with first ascents:<ref name=climbnz>[https://climbnz.org.nz/nz/si/ohau-landsborough/ben-ohau-range/mt-edgar-thomson ''Mt Edgar Thomson''], New Zealand Alpine Club, Climbnz.org, Retrieved 26 December 2024.</ref>
* East Ridge – Jane Thomson, Conrad Kain – (1915) * South Face – J.A. Roberts, Clem Williams – (1925) * South Ridge – Charlie Collins, David Hall, Priestly Thomson – (1946) * Whiteley Woute – Richard Whiteley – (1971) * Central Rib – Hans Muller, Otto Van Allman – (1973) * West Face – Tim Steward, Reg Measures – (2012)
==Climate== Based on the Köppen climate classification, Mount Edgar Thomson is located in a marine west coast (Cfb) climate zone, with a subpolar oceanic climate (Cfc) at the summit.<ref>[https://en.climate-data.org/oceania/new-zealand/canterbury/christchurch-4978/ ''Christchurch Climate (New Zealand)''], climate-data.org, Retrieved 26 December 2024.</ref> Prevailing westerly winds blow moist air from the Tasman Sea onto the mountains, where the air is forced upward by the mountains (orographic lift), causing moisture to drop in the form of rain or snow. This climate supports a small unnamed glacier on the peak's south slope. The months of December through February offer the most favourable weather for viewing or climbing this peak.<ref>[https://nzpocketguide.com/the-best-time-to-visit-the-south-island/ ''The Best Time to Visit the South Island''], nzpocketguide.com, Retrieved 26 December 2024.</ref>
==Gallery== <div style="max-width: 460px;"> <gallery mode=slideshow> File:Mount Edgar Thomson, New Zealand.jpg|Southeast aspect File:Valley of Hoophorn Stream 02.jpg|Mount Edgar Thomson (left) and the valley of Hoophorn Stream File:Cran Edgar Sefton.jpg|Mount Cran (left), Mount Edgar Thomson (center), Mount Sefton (right) across Lake Pukaki. </gallery> </div>
==See also== * List of mountains of New Zealand by height
==References== {{Reflist}}
==External links== * Weather: [https://www.yr.no/en/forecast/daily-table/2-6209000/New%20Zealand/Canterbury/Mackenzie%20District/Mount%20Edgar%20Thomson Mount Edgar Thomson] * Mount Edgar Thomson: [https://climbnz.org.nz/nz/si/ohau-landsborough/ben-ohau-range/mt-edgar-thomson New Zealand Alpine Club]
{{Geographic Location 2 | Center = Mount Edgar Thomson | North = Mount Annette | Northeast = Hoophorn Stream | East = Tasman River | Southeast = Mount Cook Road | South = Birch Hill Stream | Southwest = Dobson River | West = Mount Hopkins | Northwest = Mount Sealy }} {{Aoraki / Mount Cook National Park}} {{Portal bar|Mountains|Geography|Geology|New Zealand}}
{{DEFAULTSORT:Edgar Thomson, Mount}} Category:Southern Alps Category:Mountains of the Canterbury Region Category:Aoraki / Mount Cook National Park