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Soil Survey of Sweet Grass County Area, Montana - Soil Data Mart

Soil Survey of Sweet Grass County Area, Montana - Soil Data Mart

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<strong>Sweet</strong> <strong>Grass</strong> <strong>County</strong> <strong>Area</strong>, <strong>Montana</strong>—Part I 237<br />

Parent material: Silty and clayey residuum weathered<br />

from sandstone and shale<br />

Native plant cover type: Rangeland<br />

Available water capacity: Mainly 4.1 inches<br />

Wayden and similar soils<br />

Composition: 40 percent<br />

Geomorphic description: Knoll and plain<br />

Slope: 2 to 8 percent<br />

Elevation: 4,200 to 6,000 feet<br />

Effective annual precipitation: 15 to 19 inches<br />

Frost-free period: 85 to 115 days<br />

Surface layer texture: Clay<br />

Depth to bedrock (paralithic): 10 to 20 inches<br />

Drainage class: Well drained<br />

Parent material: Clayey residuum weathered from<br />

shale and siltstone<br />

Native plant cover type: Rangeland<br />

Available water capacity: Mainly 2.7 inches<br />

Additional Components<br />

Work and similar soils: 3 percent<br />

Cabba and similar soils: 2 percent<br />

Castner and similar soils: 2 percent<br />

Sagedale and similar soils: 2 percent<br />

Amherst and similar soils: 1 percent<br />

Management<br />

For management information about this map unit,<br />

see appropriate sections in Part II <strong>of</strong> this publication.<br />

262D—Wayden-Castner-Cabba complex,<br />

2 to 15 percent slopes<br />

Setting<br />

Field investigation intensity: Order 2<br />

Elevation: 4,200 to 6,000 feet<br />

Mean annual precipitation: 15 to 19 inches<br />

Frost-free period: 85 to 115 days<br />

Major Component Description<br />

Wayden and similar soils<br />

Composition: 40 percent<br />

Geomorphic description: Knoll and plain<br />

Slope: 2 to 15 percent<br />

Elevation: 4,200 to 6,000 feet<br />

Effective annual precipitation: 15 to 19 inches<br />

Frost-free period: 85 to 115 days<br />

Surface layer texture: Clay<br />

Depth to bedrock (paralithic): 10 to 20 inches<br />

Drainage class: Well drained<br />

Parent material: Clayey residuum weathered from<br />

shale and siltstone<br />

Native plant cover type: Rangeland<br />

Available water capacity: Mainly 2.7 inches<br />

Castner and similar soils<br />

Composition: 30 percent<br />

Geomorphic description: Knoll and plain<br />

Slope: 2 to 15 percent<br />

Elevation: 4,200 to 6,000 feet<br />

Effective annual precipitation: 15 to 19 inches<br />

Frost-free period: 85 to 115 days<br />

Surface layer texture: Channery loam<br />

Depth to bedrock (lithic): 10 to 20 inches<br />

Drainage class: Well drained<br />

Parent material: Residuum weathered from<br />

sandstone<br />

Native plant cover type: Rangeland<br />

Available water capacity: Mainly 1.6 inches<br />

Cabba and similar soils<br />

Composition: 20 percent<br />

Geomorphic description: Knoll and plain<br />

Slope: 2 to 15 percent<br />

Elevation: 4,200 to 6,000 feet<br />

Effective annual precipitation: 15 to 19 inches<br />

Frost-free period: 85 to 115 days<br />

Surface layer texture: Loam<br />

Depth to bedrock (paralithic): 10 to 20 inches<br />

Drainage class: Well drained<br />

Parent material: Loamy residuum weathered from<br />

sandstone and siltstone<br />

Native plant cover type: Rangeland<br />

Available water capacity: Mainly 2.5 inches<br />

Additional Components<br />

Sagedale and similar soils: 3 percent<br />

Doney and similar soils: 2 percent<br />

Rock outcrop: 2 percent<br />

Vershal and similar soils: 2 percent<br />

Ticell and similar soils: 1 percent<br />

Management<br />

For management information about this map unit,<br />

see appropriate sections in Part II <strong>of</strong> this publication.<br />

265C—Sagedale clay loam, 2 to 8 percent<br />

slopes<br />

Setting<br />

Elevation: 4,200 to 6,000 feet<br />

Mean annual precipitation: 15 to 19 inches<br />

Frost-free period: 85 to 115 days

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