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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256 <strong>Soil</strong> <strong>Survey</strong><br />
Frost-free period: 85 to 115 days<br />
Surface layer texture: 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 2.9 inches<br />
Additional Components<br />
Cabba and similar soils: 3 percent<br />
Castner and similar soils: 3 percent<br />
Work and similar soils: 3 percent<br />
Amor and similar soils: 2 percent<br />
Reedwest and similar soils: 2 percent<br />
Rock outcrop: 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 />
332E—Ticell loam, 15 to 35 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<br />
Major Component Description<br />
Ticell and similar soils<br />
Composition: 85 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: 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 2.9 inches<br />
Additional Components<br />
Cabba and similar soils: 4 percent<br />
Amor and similar soils: 3 percent<br />
Doney and similar soils: 3 percent<br />
Vershal and similar soils: 3 percent<br />
Castner 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 />
333F—Shawmut-Castner-Rock outcrop<br />
complex, 15 to 60 percent slopes<br />
Setting<br />
Elevation: 5,300 to 6,200 feet<br />
Mean annual precipitation: 17 to 20 inches<br />
Frost-free period: 70 to 90 days<br />
Major Component Description<br />
Shawmut and similar soils<br />
Composition: 40 percent<br />
Geomorphic description: Base slope backslope on<br />
escarpment<br />
Slope: 15 to 60 percent<br />
Elevation: 5,300 to 6,200 feet<br />
Effective annual precipitation: 17 to 20 inches<br />
Frost-free period: 70 to 90 days<br />
Surface layer texture: Gravelly loam<br />
Drainage class: Well drained<br />
Parent material: Gravelly alluvium<br />
Native plant cover type: Forestland<br />
Available water capacity: Mainly 4.3 inches<br />
Castner and similar soils<br />
Composition: 33 percent<br />
Geomorphic description:<br />
• Nose slope summit on escarpment<br />
• Nose slope shoulder on escarpment<br />
Slope: 15 to 60 percent<br />
Elevation: 5,300 to 6,200 feet<br />
Effective annual precipitation: 17 to 20 inches<br />
Frost-free period: 70 to 90 days<br />
Surface layer texture: Stony 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 />
Rock outcrop<br />
Composition: 20 percent<br />
Definition: Rock outcrop consists mainly <strong>of</strong> areas <strong>of</strong><br />
exposed hard bedrock.<br />
Geomorphic description: Escarpment