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Mountains that formed in limestone, shale, and granite. The granite intrusions have been glaciated. Elevations range from 4000 to 9500 feet. Drainage density is moderate.
Mean annual precipitation ranges from 15 to 40 inches, about 50 percent falling as snow. The soil temperature and moisture regimes are cryic and typic ustic.
Douglas-fir forest/Foothills prairie
Landform | Geology | Soil Taxa |
---|---|---|
Mountainsides/ridges/terraces | Limestone/shale/granite | Cryoboralfs/Cryochrepts/Argiborolls |
The primary natural disturbance is fire. Land use is predominantly livestock grazing, timber harvest, and mining.