United States Department of Agriculture
Natural Resources Conservation Service
Southeast Coastal Plain and Caribbean Soil Survey Region #15 Go to Accessibility Information
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Red Bay Series

  • Depth class: Very deep
  • Drainage class: Well drained
  • Permeability: Moderate
  • Parent material: Loamy marine sediments
  • Landscape: Coastal Plain
  • Landform: Uplands
  • Landform position: Broad ridges; side slopes
  • Slope: 0 to 15 percent
  • Taxonomic class: Fine-loamy, kaolinitic, thermic Rhodic Kandiudults

Commonly Associated Soils

Benevolence, Faceville, Greenville, Norfolk, and Orangeburg soils are commonly associated with the Red Bay series.

  • The Benevolence soils are in positions similar to those of the Red Bay soils or slightly lower, have hues that are more yellow, and have a coarse-loamy control section.
  • The Faceville soils are in positions similar to those of the Red Bay soils, have hues that are more yellow, and have a fine control section.
  • The Greenville soils are in positions similar to those of the Red Bay soils or slightly higher and have a fine control section.
  • The Norfolk soils are in the slightly lower positions and have hues that are more yellow.
  • The Orangeburg soils are in positions similar to those of the Red Bay soils or slightly lower and have hues that are more yellow.

Typical Pedon

Red Bay loamy sand, 2 to 5 percent slopes; about 0.3 mile east of the intersection of Benevolence Road and County Road 105 and 200 feet south of the county road; Randolph County, Georgia; USGS Benevolence topographic quadrangle; lat. 31 degrees 51 minutes 4 seconds N. and long. 84 degrees 44 minutes 49 seconds W., NAD27.

  • Ap—0 to 8 inches; dark reddish brown (2.5YR 3/3) loamy sand; weak fine granular structure; very friable; common fine roots; slightly acid; clear smooth boundary.
  • Bt1—8 to 40 inches; dark red (2.5YR 3/6) sandy loam; weak medium subangular blocky structure; friable; few fine roots; sand grains coated and bridged with clay; moderately acid; gradual smooth boundary.
  • Bt2—40 to 80 inches; dark red (10R 3/6) sandy clay loam; moderate medium subangular blocky structure; friable; common faint clay films on faces of peds; strongly acid.

Range in Characteristics

  • Thickness of the solum: More than 60 inches
  • Reaction: Very strongly acid to moderately acid in the upper part of the solum and very strongly acid or strongly acid in the lower part, except where the surface layer has been limed
  • A or Ap horizon:
    • Color—hue of 2.5YR or 5YR, value of 3 or 4, and chroma of 2 to 4
    • Texture—loamy sand or sandy loam
  • BA horizon (where present):
    • Color—hue of 10R to 5YR, value of 3 or 4, and chroma of 4 to 6
    • Texture—sandy loam or sandy clay loam
    • Other features—The horizon is less than 10 inches thick.
  • Bt horizon:
    • Color—hue of 10R or 2.5YR, value of 3, and chroma of 4 to 6
    • Texture—sandy loam or sandy clay loam


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