HsF—Hawthorne-Sulphura association, 20 to 60 percent slopes
Map Unit Setting
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National map unit symbol: 2v5c6
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Elevation: 360 to 930 feet
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Mean annual precipitation: 48 to 55 inches
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Mean annual air temperature: 57 to 61 degrees F
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Frost-free period: 185 to 205 days
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Farmland classification: Not prime farmland
Map Unit Composition
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Hawthorne and similar soils: 53 percent
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Sulphura and similar soils: 32 percent
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Estimates are based on observations, descriptions, and transects of the mapunit.
Description of Hawthorne
Setting
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Landform: Hillslopes
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Landform position (two-dimensional): Backslope
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Landform position (three-dimensional): Side slope
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Down-slope shape: Linear
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Across-slope shape: Linear
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Parent material: Gravelly residuum weathered from limestone and siltstone
Typical profile
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A - 0 to 6 inches: gravelly silt loam
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Bw - 6 to 33 inches: very gravelly silt loam
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Cr - 33 to 43 inches: bedrock
Properties and qualities
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Slope: 20 to 60 percent
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Depth to restrictive feature: 20 to 39 inches to paralithic bedrock
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Natural drainage class: Somewhat excessively drained
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Capacity of the most limiting layer to transmit water (Ksat): Very low to moderately high (0.00 to 0.20 in/hr)
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Depth to water table: More than 80 inches
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Frequency of flooding: None
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Frequency of ponding: None
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Salinity, maximum in profile: Nonsaline to very slightly saline (0.0 to 2.0 mmhos/cm)
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Available water storage in profile: Low (about 3.1 inches)
Interpretive groups
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Land capability classification (irrigated): None specified
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Land capability classification (nonirrigated): 7s
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Hydrologic Soil Group: B
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Hydric soil rating: No
Description of Sulphura
Setting
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Landform: Hillslopes
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Landform position (two-dimensional): Backslope
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Landform position (three-dimensional): Side slope
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Down-slope shape: Linear
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Across-slope shape: Linear
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Parent material: Channery residuum weathered from limestone and shale
Typical profile
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A - 0 to 10 inches: gravelly silt loam
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Bw - 10 to 22 inches: very channery silt loam
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R - 22 to 32 inches: bedrock
Properties and qualities
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Slope: 20 to 60 percent
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Depth to restrictive feature: 20 to 39 inches to lithic bedrock
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Natural drainage class: Somewhat excessively drained
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Capacity of the most limiting layer to transmit water (Ksat): Very low to moderately low (0.00 to 0.06 in/hr)
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Depth to water table: More than 80 inches
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Frequency of flooding: None
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Frequency of ponding: None
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Salinity, maximum in profile: Nonsaline to very slightly saline (0.0 to 2.0 mmhos/cm)
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Available water storage in profile: Very low (about 2.8 inches)
Interpretive groups
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Land capability classification (irrigated): None specified
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Land capability classification (nonirrigated): 7s
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Hydrologic Soil Group: C
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Hydric soil rating: No