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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<strong>Sweet</strong> <strong>Grass</strong> <strong>County</strong> <strong>Area</strong>, <strong>Montana</strong>—Part I 179<br />
Native plant cover type: Rangeland<br />
Available water capacity: Mainly 3.0 inches<br />
Delpoint and similar soils<br />
Composition: 40 percent<br />
Geomorphic description:<br />
• Base slope backslope on hill<br />
• Base slope footslope on hill<br />
• Side slope backslope on hill<br />
Slope: 15 to 35 percent<br />
Elevation: 3,750 to 5,200 feet<br />
Effective annual precipitation: 10 to 14 inches<br />
Frost-free period: 95 to 125 days<br />
Surface layer texture: Loam<br />
Depth to bedrock (paralithic): 20 to 40 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 3.8 inches<br />
Additional Components<br />
Rock outcrop: 4 percent<br />
Yamacall and similar soils: 4 percent<br />
Rentsac 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.<br />
115D—Yawdim-Rentsac-Cabbart complex,<br />
2 to 15 percent slopes<br />
Setting<br />
Elevation: 3,750 to 5,200 feet<br />
Mean annual precipitation: 10 to 14 inches<br />
Frost-free period: 95 to 125 days<br />
Major Component Description<br />
Yawdim and similar soils<br />
Composition: 40 percent<br />
Geomorphic description: Knoll and plain<br />
Slope: 2 to 15 percent<br />
Elevation: 3,750 to 5,200 feet<br />
Effective annual precipitation: 10 to 14 inches<br />
Frost-free period: 95 to 125 days<br />
Surface layer texture: Clay loam<br />
Depth to bedrock (paralithic): 10 to 20 inches<br />
Drainage class: Well drained<br />
Parent material: Clayey residuum weathered from<br />
calcareous shale<br />
Native plant cover type: Rangeland<br />
Available water capacity: Mainly 2.4 inches<br />
Rentsac and similar soils<br />
Composition: 30 percent<br />
Geomorphic description: Knoll and plain<br />
Slope: 2 to 15 percent<br />
Elevation: 3,750 to 5,200 feet<br />
Effective annual precipitation: 10 to 14 inches<br />
Frost-free period: 95 to 125 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 />
calcareous sandstone<br />
Native plant cover type: Rangeland<br />
Available water capacity: Mainly 1.4 inches<br />
Cabbart and similar soils<br />
Composition: 20 percent<br />
Geomorphic description: Knoll and plain<br />
Slope: 2 to 15 percent<br />
Elevation: 3,750 to 5,200 feet<br />
Effective annual precipitation: 10 to 14 inches<br />
Frost-free period: 95 to 125 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 3.0 inches<br />
Additional Components<br />
Reedpoint and similar soils: 3 percent<br />
Delpoint and similar soils: 2 percent<br />
Hinterland and similar soils: 2 percent<br />
Tanna and similar soils: 2 percent<br />
Rock outcrop: 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 />
116F—Cabbart-Rock outcrop complex,<br />
15 to 60 percent slopes<br />
Setting<br />
Field investigation intensity: Order 2<br />
Elevation: 3,750 to 5,200 feet<br />
Mean annual precipitation: 10 to 14 inches<br />
Frost-free period: 95 to 125 days
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