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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274 <strong>Soil</strong> <strong>Survey</strong><br />
Effective annual precipitation: 10 to 14 inches<br />
Frost-free period: 95 to 125 days<br />
Surface layer texture: Very 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 1.3 inches<br />
Additional Components<br />
Greybear and similar soils: 4 percent<br />
Reedpoint and similar soils: 3 percent<br />
Yawdim 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 />
366D—Tanna, calcareous,-Rentsac<br />
complex, 8 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 />
Tanna, calcareous and similar soils<br />
Composition: 50 percent<br />
Geomorphic description: Plain and swale<br />
Slope: 8 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): 20 to 40 inches<br />
Drainage class: Well drained<br />
Parent material: Clayey residuum weathered from<br />
sandstone and shale<br />
Native plant cover type: Rangeland<br />
Available water capacity: Mainly 4.2 inches<br />
Rentsac and similar soils<br />
Composition: 40 percent<br />
Geomorphic description: Knoll and plain<br />
Slope: 8 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: Very 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 1.3 inches<br />
Additional Components<br />
Greybear and similar soils: 4 percent<br />
Reedpoint and similar soils: 3 percent<br />
Yawdim 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 />
367D—Rentsac-Reedpoint 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 />
Rentsac and similar soils<br />
Composition: 50 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 />
Reedpoint 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: 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 0.4 inches