38 25—Grousehill-Racing complex, 0 to 5 percent slopes

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

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