Richardson Mountains
| Richardson Mountains | |
|---|---|
 Dempster Highway crossing the Richardson Mountains | |
| Highest point | |
| Peak | Manuel Peak |
| Elevation | 1,722 m (5,650 ft)[1] |
| Prominence | 1,292 m (4,239 ft)[1] |
| Coordinates | 67°59′36″N 136°35′07″W / 67.99333°N 136.58528°W[1] |
| Naming | |
| Etymology | Named for Arctic explorer John Richardson[2] |
| Geography | |
  Richardson Mountains Location within Northwest Territories | |
Country | Canada |
Territories | Northwest Territories, Yukon |
Range coordinates | 68°19′59″N 135°45′09″W / 68.33306°N 135.75250°W[3] |
| Parent range | Brooks Range |
| Topo map | NTS 106L05[3] |
The Richardson Mountains are a mountain range located west of the mouth of the Mackenzie River in northern Yukon, Canada. They parallel the northernmost part of the boundary between Yukon and Northwest Territories.
Although some sources[4] consider the Richardson Mountains to be part of the Canadian Rockies, the common northern limit of the Canadian Rockies is the Liard River, which is a long way south. The Richardson Mountains are a sub-range of the Brooks Range which lies mostly in Alaska.[2]
Geology
Richardson Mountains is in continuous permafrost region. Many areas are experiencing retrogressive thaw slump.[5][6]
This region contains well-exposed sedimentary rocks of Proterozoic to Cretaceous age and small Devonian granite intrusions.[7] Late Cretaceous to Tertiary compression inverted the original extensional structures, forming the Richardson Anticlinorium. This north-plunging structure is approximately 75 km wide and exposes rocks ranging from the Proterozoic to Carboniferous.[8]
See also
References
- 1 2 3 "Manuel Peak". Bivouac.com. Retrieved 2022-10-06.
- 1 2 "Richardson Mountains". bivouac.com. Retrieved 2016-02-10.
- 1 2 "Richardson Mountains". Geographical Names Data Base. Natural Resources Canada. Retrieved 2022-10-06.
- ↑ "Rocky Mountains | Location, Map, History, & Facts | Britannica".
- ↑ Lacelle, Denis; Brooker, Alex; Fraser, Robert H.; Kokelj, Steve V. (2015-04-15). "Distribution and growth of thaw slumps in the Richardson Mountains–Peel Plateau region, northwestern Canada". Geomorphology. 235: 40–51. doi:10.1016/j.geomorph.2015.01.024.
- ↑ Lacelle, Denis; Bjornson, Jean; Lauriol, Bernard (January–March 2010). "Climatic and geomorphic factors affecting contemporary (1950–2004) activity of retrogressive thaw slumps on the Aklavik Plateau, Richardson Mountains, NWT, Canada". Permafrost and Periglacial Processes. 21 (1): 1–15. doi:10.1002/ppp.666. ISSN 1045-6740.
- ↑ "British–Richardson Mountains" (PDF). yukon.ca. Retrieved 2026-04-01.
- ↑ "Structural geology of the eastern Richardson Mountains, Yukon and Northwest Territories" (PDF). ygsftp.gov.yk.ca. Retrieved 2026-04-01.