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Landform: Mountains
Elevation: 5,200 to 5,500 feet
Slope range: 2 to 15 percent
Vegetation: Grasses and big sagebrush
Mean annual precipitation: 14 to 18 inches
Mean annual air temperature: 47 to 48 degrees F
Mean annual soil temperature: 49 to 50 degrees F
Frost-free period: 80 to 100 days

Position on the landscape: Toe slopes
Parent material: Alluvium from extrusive igneous rock and lacustrine sediments
Typical profile:
0 to 12 inches—grayish brown gravelly loam
12 to 54 inches—grayish brown, brown, and light yellowish brown gravelly sandy clay loam and clay loam
54 to 64 inches—gravelly sandy loam
Depth class: Very deep
Drainage class: Well drained
Slowest permeability class: Moderately slow
Available water capacity: Moderate
Highest shrink-swell potential: Moderate
Surface runoff: Slow or medium
Depth to bedrock: More than 60 inches
Hazard of water erosion in bare areas: Low or moderate

Position on the landscape: Foot slopes
Parent material: Colluvium from extrusive igneous rock
Typical profile:
0 to 6 inches—grayish brown gravelly loam
6 to 18 inches—brown very cobbly loam
18 to 28 inches—pale brown very cobbly loam
28 to 53 inches—very pale brown, soft andesitic conglomerate
53 inches—tuff
Depth class: Moderately deep
Drainage class: Well drained
Slowest permeability class: Moderate
Available water capacity: Low
Highest shrink-swell potential: Low
Surface runoff: Slow or medium
Depth to bedrock: 20 to 40 inches
Hazard of water erosion in bare areas: Low or moderate

• Longcreek soils, which are less than 20 inches deep to hard bedrock and have more than 35 percent clay and rock fragments in the subsoil; on shoulders
• Orhood soils, which are less than 20 inches deep to hard bedrock and have more than 35 percent rock fragments and less than 35 percent clay in the subsoil; on shoulders
• Soils that are similar to the Dotta soil but are less than 40 inches deep to bedrock; on back slopes

Land use: Livestock grazing

Common plants on the Dotta soil: Bluebunch wheatgrass, mountain big sagebrush, antelope bitterbrush, Idaho fescue

Common plants on the Searvar soil: Mountain big sagebrush, antelope bitterbrush, bluebunch wheatgrass, Idaho fescue

Major management factors: Water erosion

Management considerations:

• Maintaining a cover of vegetation, such as grass and brush, on about 40 percent of the surface helps to control erosion during periods of intense rainfall and spring snowmelt.

Land capability classification: Dotta—IIIe-4; Searvar—IVe-4, nonirrigated
MLRA: 21
Prime farmland: Not considered prime farmland
Range site: Dotta—Cool Deep Loam, MAP 16-18 (21e); Searvar—Cool Cobbly Loam, MAP 16-18 (21e)