| Mount Allen | |
| Other Name: | Shappee |
| Elevation M: | 3310 |
| Elevation Ref: | [1] |
| Prominence M: | 260 |
| Parent: | Canadian Rockies |
| Country: | Canada |
| Subdivision1 Type: | Provinces |
| Subdivision2 Type: | Parks |
| Map: | Canada Alberta#Canada British Columbia |
| Map Size: | 200 |
| Label Position: | right |
| Coordinates: | 51.2925°N -116.22°W |
| Coordinates Ref: | [2] |
| First Ascent: | 1904 Gertrude Benham, Christian Kaufmann |
Mount Allen is a mountain in the Canadian Rockies, on the Continental Divide, which forms the provincial boundary between British Columbia and Alberta in this region. J. Monroe Thorington named this mountain for Samuel Evans Stokes Allen in 1924.[3] Allen was an American cartographer who mapped this area of the Rockies in 1894-95. Allen had named this mountain "Shappee", the Stoney language word for "six", as part of his naming of the ten mountains in the Valley of the Ten Peaks. The peak forms part of the backdrop to Moraine Lake in Banff National Park.
The mountains in Banff Park are composed of sedimentary rock laid down during the Precambrian to Jurassic periods. Formed in shallow seas, this sedimentary rock was pushed east and over the top of younger rock during the Laramide orogeny.[4]
Based on the Köppen climate classification, the mountain has a subarctic climate with cold, snowy winters, and mild summers.[5] Temperatures can drop below −20 °C with wind chill factors below −30 °C in the winter.