Grandjean Peak Explained

Grandjean Peak
Elevation Ft:9180.
Elevation Ref:[1]
Prominence Ft:680.
Isolation Mi:2.51
Isolation Ref:[2]
Parent Peak:Tohobit Peak (10,046 ft)
Listing:Peaks of the Sawtooth Range
Etymology:Emile Grandjean
Map:Idaho#USA
Label Position:bottom
Map Size:240
Part Type:Protected area
Part:Sawtooth Wilderness
Country:United States
State:Idaho
Region:Boise
Region Type:County
Coordinates:44.1163°N -115.1043°W
Coordinates Ref:[3]
Range:Sawtooth Range
Rocky Mountains
Rock:Granite
Age:Eocene
Type:Fault block
Topo:USGS Warbonnet Peak
First Ascent:1994 by Greg Parker

Grandjean Peak is a 9180feet mountain summit in Boise County, Idaho, United States.

Description

Grandjean Peak is part of the Sawtooth Range which is a subset of the Rocky Mountains.[4] This mountain with multiple high points is located 11 miles (18 km) southwest of Stanley, Idaho, in the Sawtooth Wilderness on land managed by Boise National Forest. Precipitation runoff from the mountain's slopes drains to the South Fork Payette River via Baron and Goat creeks. Topographic relief is significant as the summit rises 3580abbr=offNaNabbr=off above Baron Creek in one mile (1.6 km) and 3180abbr=offNaNabbr=off above Goat Creek in 0.85 mile (1.37 km).

Etymology

The mountain is named after Emile Grandjean (1861–1942), who served as the first supervisor of Boise National Forest from 1908 to 1922.[1] This landform's toponym has been officially adopted by the United States Board on Geographic Names.[3]

Climate

Based on the Köppen climate classification, Grandjean Peak is located in an alpine subarctic climate zone with long, cold, snowy winters, and cool to warm summers.[5] Winter temperatures can drop below −10 °F with wind chill factors below −30 °F.

See also

External links

Notes and References

  1. Web site: Idaho: A Climbing Guide, Grandjean Peak. idahoaclimbingguide.com. 2023-09-18.
  2. Web site: Grandjean Peak - 9,180' ID. listsofjohn.com. 2023-09-18.
  3. 382507. Grandjean Peak. 2023-09-18.
  4. 5045. Grandjean Peak, Idaho. 2023-09-18.
  5. Peel, M. C. . Finlayson, B. L. . McMahon, T. A. . 2007 . Updated world map of the Köppen−Geiger climate classification . Hydrol. Earth Syst. Sci. . 11 . 1633–1644 . 1027-5606.