\<@37\>Boswell Series

\<@33\>\<i\>*Depth class:*\<p\> Very deep

\<@33\>\<i\>*Drainage class:*\<p\> Moderately well drained

\<@33\>\<i\>*Permeability:*\<p\> Very slow

\<@33\>\<i\>*Parent material:*\<p\> Clayey marine sediments

\<@33\>\<i\>*Landscape:*\<p\> Coastal Plain uplands

\<@33\>\<i\>*Landform:*\<p\> Ridges and hills

\<@33\>\<i\>*Landform position:*\<p\> Summits, side slopes, and
toeslopes

\<@33\>\<i\>*Slope:*\<p\> 2 to 8 percent

\<@33\>\<i\>*Taxonomic class:*\<p\> Fine, mixed, active, thermic Vertic
Paleudalfs

\<@8\>Boswell soils are commonly associated on the landscape with
Freest, Savannah, Smithdale, and Sweatman soils. The Freest and Savannah
soils are in the higher positions and are fine-loamy. The well drained
Smithdale soils are in positions similar to those of the Boswell soils
and are fine-loamy. The well drained Sweatman soils are in positions
similar to those of the Boswell soils at higher elevations.

\<@27\>Typical Pedon

\<@32\>Boswell loam, 2 to 5 percent slopes, eroded; in a wooded area
about 5.5 miles north of Raleigh; 900 feet east and 2,500 feet north of
the southwest corner of sec. 23, T. 3 N., R. 7 E.; USGS Raleigh
topographic quadrangle; lat. 32 degrees 05 minutes 01 second N. and
long. 89 degrees 33 minutes 24 seconds W.

\<@23\>Ap---0 to 2 inches; dark grayish brown (10YR 4/2) loam; weak fine
and medium granular structure; friable; many fine and few medium roots;
very strongly acid; clear smooth boundary.

\<@33\>Bt1---2 to 7 inches; yellowish red (5YR 5/6) clay; weak medium
subangular blocky structure; firm; many fine and few medium roots; few
distinct clay films on faces of peds; very strongly acid; clear wavy
boundary.

\<@33\>Bt2---7 to 15 inches; red (2.5YR 4/6) clay; moderate medium
subangular blocky structure; firm; common fine and medium roots; many
distinct clay films on faces of peds; very strongly acid; gradual wavy
boundary.

\<@33\>Bt3---15 to 23 inches; red (2.5YR 4/6) clay; strong medium
subangular blocky structure; firm; common fine and few medium roots;
many distinct clay films on faces of peds; many medium distinct reddish
yellow (7.5YR 6/8) masses of iron accumulation; very strongly acid;
gradual wavy boundary.

\<@33\>Bt4---23 to 28 inches; red (2.5YR 4/6) clay; strong medium
angular blocky structure; firm; many distinct clay films on faces of
peds; many fine, medium, and coarse prominent light brownish gray (10YR
6/2) iron depletions; very strongly acid; gradual wavy boundary.

\<@33\>Bt5---28 to 39 inches; light brownish gray (10YR 6/2) clay;
strong medium angular blocky structure; firm; many distinct clay films
on faces of peds; many fine and medium prominent red (2.5YR 4/6) and
yellowish brown (10YR 5/8) masses of iron accumulation; very strongly
acid; gradual wavy boundary.

\<@33\>Bt6---39 to 45 inches; light brownish gray (10YR 6/2) clay;
strong medium angular blocky structure; firm; many distinct clay films
on faces of peds; many fine and medium prominent red (2.5YR 4/6) and
yellowish brown (10YR 5/8) masses of iron accumulation; very strongly
acid; gradual wavy boundary.

\<@33\>Btss1---45 to 50 inches; light brownish gray (10YR 6/2) clay;
strong medium angular blocky structure; firm; many distinct clay films
on faces of peds; few intersecting slickensides; many fine and coarse
prominent red (2.5YR 4/8) masses of iron accumulation; very strongly
acid; gradual wavy boundary.

\<@33\>Btss2---50 to 63 inches; red (2.5YR 4/6) clay; moderate medium
angular blocky structure; firm; many distinct clay films on faces of
peds; few intersecting slickensides; many fine and medium prominent
light brownish gray (10YR 6/2) iron depletions; strongly acid; gradual
wavy boundary.

\<@33\>Btss3---63 to 73 inches; yellowish red (5YR 5/6) clay; large
wedge-shaped aggregates parting to moderate fine and medium angular
blocky structure; firm; many distinct clay films on faces of peds;
common intersecting slickensides; few fine distinct light brownish gray
(10YR 6/2) iron depletions; many fine and medium distinct yellowish
brown (10YR 5/6) masses of iron accumulation; strongly acid; gradual
wavy boundary.

\<@33\>BC---73 to 77 inches; light brownish gray (2.5Y 6/2) clay; large
wedge-shaped aggregates parting to moderate medium angular blocky and
weak medium platy structure; very firm; common intersecting
slickensides; common fine and medium prominent red (2.5YR 5/6) and
common fine distinct yellowish brown (10YR 5/6) masses of iron
accumulation; strongly acid; gradual wavy boundary.

\<@33\>C---77 to 93 inches; light gray (2.5Y 7/2) clay; weak thin platy
structure; firm; few fine distinct greenish gray (5G 5/1) iron
depletions; common medium prominent reddish yellow (7.5YR 6/6), common
fine distinct yellowish brown (10YR 5/6), and few fine prominent
yellowish red (5YR 5/6) masses of iron accumulation; strongly acid.

\<@27\>Range in Characteristics

\<@33\>\<i\>*Solum thickness:*\<p\> More than 60 inches

\<@33\>\<i\>*Reaction:*\<p\> Very strongly acid or strongly acid
throughout the profile, except for the surface layer in areas that have
been limed

\<@23\>\<i\>*Ap horizon:*\<p\>

\<@31\>Color---hue of 10YR, value of 3 to 5, and chroma of 1 to 3

\<@23\>\<i\>*E horizon (if it occurs):*\<p\>

\<@31\>Color---hue of 10YR, value of 5 or 6, and chroma of 3 or 4

\<@31\>Texture---fine sandy loam, sandy loam, or loam

\<@23\>\<i\>*Bt horizon (upper part):*\<p\>

\<@31\>Color---hue of 2.5YR or 5YR, value of 4 or 5, and chroma of 4 to
6

\<@31\>Texture---clay loam, silty clay loam, silty clay, or clay

\<@31\>Redoximorphic features---none to common iron depletions in shades
of gray and masses of iron accumulation in shades of brown, red, and
gray

\<@23\>\<i\>*Bt horizon (lower part) and Btss horizon:*\<p\>

\<@31\>Color---hue of 2.5YR to 10YR, value of 4 to 6, and chroma of 2 to
6; or no dominant matrix color and multicolored in shades of brown, red,
gray, and yellow

\<@31\>Texture---clay loam, silty clay loam, silty clay, or clay

\<@31\>Redoximorphic features---common or many iron depletions in shades
of gray and masses of iron accumulation in shades of brown, red, and
yellow

\<@23\>\<i\>*BC or C horizon (if it occurs):*\<p\>

\<@31\>Color---hue of 10YR or 2.5Y, value of 5 to 7, and chroma of 1 to
3

\<@31\>Texture---silty clay or clay

\<@31\>Redoximorphic features---common or many iron depletions in shades
of gray and masses of iron accumulation in shades of red, yellow, and
brown