Eon Mountain
Mountain on Alberta/British Columbia border in Canada
title: "Eon Mountain" type: doc version: 1 created: 2026-02-28 author: "Wikipedia contributors" status: active scope: public tags: ["three-thousanders-of-alberta", "three-thousanders-of-british-columbia", "park-ranges", "kootenay-land-district"] description: "Mountain on Alberta/British Columbia border in Canada" topic_path: "geography/united-kingdom" source: "https://en.wikipedia.org/wiki/Eon_Mountain" license: "CC BY-SA 4.0" wikipedia_page_id: 0 wikipedia_revision_id: 0
::summary Mountain on Alberta/British Columbia border in Canada ::
::data[format=table title="Infobox mountain"]
| Field | Value |
|---|---|
| name | Eon Mountain |
| photo | Eon Mountain.jpg |
| photo_caption | Aerial view of north aspect |
| elevation_m | 3305 |
| elevation_ref | |
| prominence_m | 558 |
| prominence_ref | |
| range | Park Ranges |
| parent_peak | Lunette Peak (3428 m) |
| listing | Mountains of Alberta |
| Mountains of British Columbia | |
| country | Canada |
| subdivision1_type | Provinces |
| subdivision1 | |
| district | Kootenay Land District |
| part_type | Protected area |
| map | Canada Alberta#Canada British Columbia#Canada |
| map_caption | Location in Alberta##Location in British Columbia##Location in Canada |
| label_position | right#left |
| mapframe | yes |
| mapframe-zoom | 8 |
| mapframe-caption | Interactive map of Eon Mountain |
| coordinates | |
| coordinates_ref | |
| --><ref name | cgndb_bc |
| topo_map | NTS |
| first_ascent | 1921 Winthrop E. Stone |
| :: |
| name= Eon Mountain | photo= Eon Mountain.jpg | photo_caption= Aerial view of north aspect | elevation_m= 3305 | elevation_ref= | prominence_m= 558 | prominence_ref= | range= Park Ranges | parent_peak= Lunette Peak (3428 m) | listing= Mountains of Alberta Mountains of British Columbia | country= Canada | subdivision1_type= Provinces | subdivision1= | district = Kootenay Land District | part_type = Protected area | part = Banff National Park | map= Canada Alberta#Canada British Columbia#Canada | map_caption= Location in Alberta##Location in British Columbia##Location in Canada | label_position= right#left | mapframe = yes | mapframe-zoom = 8 | mapframe-caption = Interactive map of Eon Mountain | coordinates= | coordinates_ref=
| topo_map= NTS | first_ascent= 1921 Winthrop E. Stone | easiest_route=
Eon Mountain is located just south of Mount Assiniboine and straddles the Continental Divide marking the Alberta-British Columbia border. Originally adopted as Mount Eon in 1928 it was later changed to Eon Mountain in October 1957.
The first ascent of Eon was made on July 17, 1921, by Winthrop E. Stone, then President of Purdue University, who fell to his death shortly after reaching the summit. Stone had climbed the final chimney and then unroped on the summit. Upon returning to the chimney he stepped on a loose stone near the edge and fell. His wife was stationed at the base of the final chimney at the time. She was able to descend to 7500 ft on the south face and was rescued on July 24. On August 5, a five-man recovery team ascended the SE arête to retrieve Stone's body which was located some 850 ft below the summit. NOTOC
Geology
The mountain is composed of sedimentary rock laid down during the Precambrian to Jurassic periods.
Climate
Based on the Köppen climate classification, Eon Mountain is located in a subarctic climate zone with cold, snowy winters, and mild summers. Temperatures can drop below −20 C with wind chill factors below −30 C.
Gallery
File:Gloria, Eon and Aye Mountains, Mt Assiniboine.jpg|Eon Mountain to left, Aye Mountain centered, Assiniboine to right File:Mt. Assiniboine 2017.jpg|Eon Mountain to left behind Mt. Assiniboine File:Mts. Eon & Aye.jpg|Mts. Eon (left) & Aye (behind tree) from skiout
References
| author1 = Thorington, J. Monroe | publisher = American Alpine Club | isbn = 978-1376169003 | others = With the collaboration of Putnam, William Lowell | year = 1966 | orig-year = 1921 | page = 42 | chapter = White Man Pass to Simpson Pass | edition = 6th}}
References
- "Eon Mountain".
- NTS map sheet {{Canada NTS Map Sheet. 82. J. 13
- {{cite cgndb
- {{cite cgndb
- "Eon Mountain".
- Gadd, Ben. (2008). "Geology of the Rocky Mountains and Columbias".
- Peel, M. C.. (2007). "Updated world map of the Köppen−Geiger climate classification". Hydrol. Earth Syst. Sci..
- {{cite bcgnis
- {{Belyea-Banff-NP
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