Chiwaukum Mountains

The Chiwaukum Mountains are a north-south mountain range in central Washington, United States. They stretch from Snowgrass Mountain at 47°41′N 120°56′W, to 47°45′N 120°54′W.

Chiwaukum Mountains
The Chiwaukum Mountains (left and center skyline), looking south southeast, with Big Chiwaukum (8081 feet, 2463 m), the highest point
Highest point
Peak	Big Chiwaukum
Elevation	2,463 m (8,081 ft)
Coordinates	47°42′05″N 120°56′02″W
Geography
Country	United States
State	Washington
District	Wenatchee National Forest
Parent range	Wenatchee Mountains
Geology
Age of rock	Cretaceous
Type of rock	schist

The mountains are made of schist, part of the Nason terrane. The original rock in the Nason terrane was laid down 210 Myr ago. The terrane then smashed into the western coastline of the continent, and the Mount Stuart batholith intruded into it in the late Cretaceous. The intrusion of the granitic rock metamorphosed the rock into schist.[1]

In July 2014, the lightning-caused Chiwaukum Creek Fire burned the east flank of the Chiwaukum Mountains.

Partial list of peaks:

• Big Chiwaukum – 8,081' (2463m) – [2]
• Snowgrass Mountain – 7,993' (2436m) – [3]
• Big Lou – 7,780' (2370m) – [4]
• Big Jim Mountain – 7,765' (2367m) – [5]
• Ladies Peak – 7,708' (2349m) – [6]
• Grindstone Mountain – 7,533' (2296m) – [7]
• Cape Horn – 7,316' (2230m) – [8]
• Bulls Tooth – 6,840' (2080m) – [9]

Nearby peaks:

• Jim Hill Mountain – 6,765' (2062m) – [10]
• Arrowhead Mountain – 6,020' (1835m) – [11]
• Cowboy Mountain – 5,853' (1784m) – [12]

See also

• List of mountain ranges in Washington

References

1. "GEOLOGIC MAP OF THE CHELAN 30-MINUTE BY 60-MINUTE QUADRANGLE, WASHINGTON" (PDF). United States Geological Survey. Retrieved 2018-06-15.
2. "Big Chiwaukum, Washington". PeakBagger.com. Retrieved 2018-06-15.
3. "Snowgrass Mountain". Geographic Names Information System. United States Geological Survey. Retrieved 2018-06-14.
4. "Big Lou, Washington". PeakBagger.com. Retrieved 2020-08-04.
5. "Big Jim Mountain". Geographic Names Information System. United States Geological Survey. Retrieved 2018-06-14.
6. "Ladies Peak, Washington". PeakBagger.com. Retrieved 2020-07-24.
7. "Grindstone Mountain, Washington". PeakBagger.com. Retrieved 2020-06-26.
8. "Cape Horn, Washington". PeakBagger.com. Retrieved 2020-07-24.
9. "Bulls Tooth, Washington". PeakBagger.com. Retrieved 2020-06-24.
10. "Jim Hill Mountain". Geographic Names Information System. United States Geological Survey. Retrieved 2018-06-14.
11. "Arrowhead Mountain". Geographic Names Information System. United States Geological Survey. Retrieved 2020-07-11.
12. "Cowboy Mountain". Geographic Names Information System. United States Geological Survey. Retrieved 2018-06-14.