Soil Survey of Sweet Grass County Area, Montana - Soil Data Mart
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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268 <strong>Soil</strong> <strong>Survey</strong><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: Forestland<br />
Available water capacity: Mainly 2.0 inches<br />
Additional Components<br />
Castner and similar soils: 5 percent<br />
Macar and similar soils: 5 percent<br />
Management<br />
For management information about this map unit,<br />
see appropriate sections in Part II <strong>of</strong> this publication.<br />
356D—Redchief gravelly loam,<br />
4 to 15 percent slopes<br />
Setting<br />
Elevation: 6,000 to 7,500 feet<br />
Mean annual precipitation: 20 to 25 inches<br />
Frost-free period: 50 to 70 days<br />
Major Component Description<br />
Redchief and similar soils<br />
Composition: 90 percent<br />
Geomorphic description: Microhigh on outwash plain<br />
Slope: 4 to 15 percent<br />
Elevation: 6,000 to 7,500 feet<br />
Effective annual precipitation: 20 to 25 inches<br />
Frost-free period: 50 to 70 days<br />
Surface layer texture: Gravelly loam<br />
Drainage class: Well drained<br />
Parent material: Gravelly glaci<strong>of</strong>luvial deposits<br />
Native plant cover type: Rangeland<br />
Available water capacity: Mainly 4.9 inches<br />
Additional Components<br />
Libeg and similar soils: 4 percent<br />
Adel and similar soils: 3 percent<br />
Melville and similar soils: 3 percent<br />
Management<br />
For management information about this map unit,<br />
see appropriate sections in Part II <strong>of</strong> this publication.<br />
357D—Cabba-Vershal complex,<br />
4 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 />
Cabba and similar soils<br />
Composition: 50 percent<br />
Geomorphic description: Knoll and plain<br />
Slope: 4 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 />
Vershal and similar soils<br />
Composition: 40 percent<br />
Geomorphic description: Knoll and plain<br />
Slope: 4 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: Very channery loam<br />
Depth to bedrock (lithic): 4 to 10 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 0.6 inches<br />
Additional Components<br />
Amherst and similar soils: 5 percent<br />
Reedwest and similar soils: 3 percent<br />
Beenom and similar soils: 2 percent<br />
Management<br />
For management information about this map unit,<br />
see appropriate sections in Part II <strong>of</strong> this publication.
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