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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214 <strong>Soil</strong> <strong>Survey</strong><br />
202D—Castner-Absarokee complex,<br />
8 to 15 percent 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<br />
Major Component Description<br />
Castner and similar soils<br />
Composition: 50 percent<br />
Geomorphic description: Knoll and plain<br />
Slope: 8 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 />
Absarokee and similar soils<br />
Composition: 40 percent<br />
Geomorphic description: Plain and swale<br />
Slope: 8 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 (lithic): 20 to 40 inches<br />
Drainage class: Well drained<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 />
Additional Components<br />
Work and similar soils: 3 percent<br />
Amherst and similar soils: 2 percent<br />
Cabba and similar soils: 2 percent<br />
Wayden 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 />
202E—Castner-Absarokee complex,<br />
15 to 35 percent 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<br />
Major Component Description<br />
Castner and similar soils<br />
Composition: 50 percent<br />
Geomorphic description:<br />
• Nose slope summit on hill<br />
• Nose slope shoulder on hill<br />
Slope: 15 to 35 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 1.4 inches<br />
Absarokee and similar soils<br />
Composition: 40 percent<br />
Geomorphic description:<br />
• Side slope backslope on hill<br />
• Base slope backslope on hill<br />
• Base slope footslope on hill<br />
Slope: 15 to 35 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 (lithic): 20 to 40 inches<br />
Drainage class: Well drained<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 />
Additional Components<br />
Work and similar soils: 5 percent<br />
Amherst and similar soils: 2 percent<br />
Amor and similar soils: 2 percent<br />
Rock outcrop: 1 percent
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