Detailed Soil Map Units
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25—Grousehill-Racing complex, 0 to 5 percent slopes
Map Unit Setting
General location: Meadows on glaciated ridges
Major land resource area (MLRA): 3
Elevation: 4,000 to 5,500 feet
Average annual precipitation: 50 to 70 inches
Average annual air temperature: 38 to 42 degrees F
Frost-free period: 10 to 50 days
Map Unit Composition
Grousehill and similar soils:
50 percent
Racing and similar soils: 40 percent
Minor components: 10 percent
Characteristics of the Grousehill Taxadjunct and Similar Soils
Setting
Landform: Mountain
Geomorphic position: Drainageways on glaciated ridges
Parent material: Ash over glacial till
Properties and qualities
Slope: 0 to 5 percent
Percentage of surface covered with stones and boulders: None
Restrictive feature: Duripan at a depth of 40 to 60 inches
Drainage class: Moderately well drained
Permeability: Moderate
Flooding: Not present
Water table: Present (see
table 20)
Ponding: Not present
Available water capacity: About 8.1 inches
Interpretive groups
Ecological site: Rangeland—(003XY020OR) Ashy Glacial Prairie 40-60 PZ
Typical profile
A1—0 to 2 inches; ashy loamy sand
A2—2 to 12 inches; ashy sandy loam
2Bw1—12 to 30 inches; very gravelly medial loam
2Bw2—30 to 36 inches; very gravelly medial clay loam
2BC—36 to 45 inches; very gravelly medial sandy clay loam
2Bqm—45 to 60 inches; moderately cemented duripan
Characteristics of the Racing and Similar Soils
Setting
Landform: Mountain
Geomorphic position: Drainageways on glaciated ridges
Parent material: Ash over glacial till
Properties and qualities
Slope: 0 to 3 percent
Percentage of surface covered with stones and boulders: None
Restrictive features: None within a depth of 60 inches
Drainage class: Poorly drained
Permeability: Slow or moderate
Flooding: Not present
Water table: Present (see
table 20)
Ponding: Present (see
table 20)
Available water capacity: About 8.5 inches
Interpretive groups
Ecological site: Rangeland—(003XY019OR) Ashy Glacial Meadow 40-60 PZ
Typical profile
Oa—0 to 4 inches; muck
A—4 to 6 inches; silt loam
Bw—6 to 18 inches; ashy very fine sandy loam
Bg1—18 to 28 inches; ashy sandy clay loam
Bg2—28 to 34 inches; ashy sandy clay loam
2Bg3—34 to 50 inches; very gravelly ashy sandy loam
3Bq—50 to 60 inches; extremely gravelly loamy sand
Characteristics of the Minor Components
Grousehill soils
Percentage of map unit: 10 percent
Landform: Ground moraine
Geomorphic position: Glacial moraine on mountainsides
Major Soil Features and Properties Affecting Management
Grousehill taxadjunct
• Rock fragments on surface
• Rock fragments in soil profile
• Depth to hardpan
• Wetness
Racing soil
• Wetness
• Frost hazard
