\<@37\>Susquehanna Series

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

\<@33\>\<i\>*Drainage class:*\<p\> Somewhat poorly drained

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

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

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

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

\<@33\>\<i\>*Slope:*\<p\> 1 to 12 percent

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

\<@27\>Commonly Associated Soils

\<@30\>Freest, Saucier, Smithdale, and Smithton soils are commonly
associated with the Susquehanna series.

-   \<@49\>The loamy Freest and Saucier soils are in slightly higher
    positions than those of the Susquehanna soils.

-   \<@29\>The loamy Smithdale soils are in positions similar to those
    of the Susquehanna soils.

-   \<@29\>The poorly drained Smithton soils are in drainageways.

\<@27\>Typical Pedon

\<@30\>Susquehanna silt loam, in an area of Susquehanna-Freest complex,
1 to 5 percent slopes; about 2 miles north of Larue on the Larue
Dantzler Road; 1,500 feet south and 2,600 feet east of the northwest
corner of sec. 35, T. 4 S., R. 9 W.

\<@23\>Ap---0 to 5 inches; dark grayish brown (10YR 4/2) silt loam; weak
coarse granular structure; very friable; many fine and medium roots;
very strongly acid; abrupt smooth boundary.

\<@33\>Bt---5 to 11 inches; light brown (7.5YR 6/4) clay; moderate
medium subangular blocky structure; firm; many fine roots; few faint
clay films on faces of peds; few fine faint light brownish gray (10YR
6/2) iron depletions; very strongly acid; clear smooth boundary.

\<@33\>Btss1---11 to 23 inches; strong brown (7.5YR 5/6) clay; moderate
medium subangular blocky structure; firm; many fine roots; few faint
clay films on faces of peds; few large slickensides that have distinct
polished and grooved surfaces; few medium distinct light brownish gray
(10YR 6/2) iron depletions; common medium prominent red (2.5YR 4/6) and
common medium distinct yellowish brown (10YR 5/6) masses of iron
accumulation; very strongly acid; abrupt wavy boundary.

\<@33\>Btss2---23 to 34 inches; 50 percent yellowish red (5YR 5/6), 20
percent brownish yellow (10YR 6/6), 15 percent light brownish gray (10YR
6/2), and 15 percent red (2.5YR 4/6) clay; moderate medium angular
blocky structure parting to strong fine angular blocky; firm; few faint
clay films on faces of peds; few large slickensides that have distinct
polished and grooved surfaces; areas of yellowish red, brownish yellow,
and red are masses of iron accumulation; areas of light brownish gray
are iron depletions; very strongly acid; gradual wavy boundary.

\<@33\>Btss3---34 to 39 inches; 40 percent yellowish red (5YR 5/6), 20
percent gray (10YR 6/1), 20 percent yellowish brown (10YR 5/6), and 20
percent red (2.5YR 4/6) silty clay; moderate medium angular blocky
structure parting to strong fine angular blocky; firm; few faint clay
films on faces of peds; few large slickensides that have polished and
grooved surfaces; areas of yellowish red, yellowish brown, and red are
masses of iron accumulation; areas of gray are iron depletions; very
strongly acid; gradual wavy boundary.

\<@33\>Btss4---39 to 45 inches; 45 percent light brownish gray (10YR
6/2), 25 percent red (2.5YR 4/6), 20 percent red (10R 4/6), and 10
percent brownish yellow (10YR 6/6) silty clay; strong medium angular
blocky structure; firm; few faint clay films on faces of peds; few large
intersecting slickensides that have polished and grooved surfaces; areas
of red and brownish yellow are masses of iron accumulation; areas of
light brownish gray are iron depletions; very strongly acid; gradual
wavy boundary.

\<@33\>Btssg1---45 to 59 inches; gray (10YR 6/1) silty clay; weak coarse
angular blocky structure parting to strong fine and medium angular
blocky; very firm; few faint clay films on faces of peds; common large
intersecting slickensides that have distinct polished and grooved
surfaces; many fine and medium prominent red (10R 4/6), weak red (10R
4/4), and strong brown (7.5YR 5/6) masses of iron accumulation; very
strongly acid; gradual wavy boundary.

\<@33\>Btssg2---59 to 80 inches; gray (10YR 6/1) silty clay; weak coarse
angular blocky structure parting to strong medium angular blocky; very
firm; few faint clay films on faces of peds; common large intersecting
slickensides that have distinct polished and grooved surfaces; many fine
and medium distinct brownish yellow (10YR 6/6) and few fine prominent
red (10R 4/6) masses of iron accumulation; very strongly acid.

\<@27\>Range in Characteristics

\<@33\>\<i\>*Thickness of the solum:*\<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\>*A or Ap horizon:*\<p\>

\<@31\>Color---hue of 10YR, value of 3 or 4, and chroma of 2 or 3

\<@23\>\<i\>*Bt and Btss horizons:*\<p\>

\<@31\>Color---hue of 2.5YR to 7.5YR, value of 4 to 6, and chroma of 4
to 8; or no dominant matrix color and multicolored in shades of gray,
red, and brown

\<@31\>Texture---commonly silty clay or clay but includes silty clay
loam

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

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

\<@31\>Color---hue of 10YR or 2.5Y, value of 5 or 6, and chroma of 1 or
2

\<@31\>Texture---commonly silty clay or clay but includes silty clay
loam

\<@31\>Redoximorphic features---common or many masses of iron
accumulation in shades of red or brown