\<@37\>Stockade Series

\<@32\>The Stockade series consists of very deep, poorly drained soils
that formed in loamy sediments. These soils are in wet, low positions.
Slopes are less than 2 percent. The soils of the Stockade series are
fine-loamy, mixed, thermic Typic Umbraqualfs.

\<@32\>Stockade soils are associated with Bivans, Pelham, and Plummer
soils. Bivans soils have a Bt horizon of sandy clay. Pelham soils have
sandy A and E horizons with a combined thickness of 20 to 40 inches over
a loamy Bt horizon. Pelham soils are in landscape positions similar to
those of the Stockade soils. Plummer soils have sandy surface and
subsurface layers with a combined thickness of more than 40 inches.

\<@32\>Typical pedon of Stockade fine sandy loam; 2,640 feet north and
500 feet west of the southeast corner of sec. 14, T. 1 N., R. 13 E.

\<@23\>Ap---0 to 10 inches; very dark gray (10YR 3/1) fine sandy loam;
moderate medium subangular blocky structure; very friable; slightly
sticky and nonplastic; common medium and many fine and very fine roots;
very strongly acid; clear wavy boundary.

\<@33\>Btg1---10 to 25 inches; gray (10YR 5/1) and very dark gray (10YR
3/1) sandy clay loam; common fine prominent strong brown (7.5YR 5/6)
mottles; moderate medium subangular blocky structure; firm, sticky and
plastic; common moderately thick clay films on faces of peds; very
strongly acid; gradual smooth boundary.

\<@33\>Btg2---25 to 44 inches; gray (10YR 5/1) and very dark gray (N
3/0) sandy clay loam; common medium prominent yellowish red (5YR 5/8)
mottles; moderate coarse prismatic structure parting to moderate coarse
subangular blocky; very firm, sticky and plastic; common moderately
thick clay films on faces of peds; very strongly acid; gradual wavy
boundary.

\<@33\>Btg3---44 to 54 inches; very dark gray (10YR 3/1) and light gray
(5YR 7/2) sandy clay loam; few fine prominent yellowish red (5YR 5/8)
mottles; weak coarse prismatic structure parting to moderate coarse
angular blocky; very firm, sticky and plastic; few moderately thick clay
films on faces of peds; very strongly acid; clear wavy boundary.

\<@33\>Cg---54 to 80 inches; stratified very dark gray (10YR 3/1) and
light gray (5Y 7.2) sandy clay loam; few medium prominent yellowish red
(5YR 5/6) mottles; weak coarse subangular blocky structure; friable,
slightly sticky and slightly plastic; very strongly acid.

\<@8\>The thickness of the solum ranges from 40 to 60 inches. Reaction
ranges from very strongly acid to moderately alkaline.

\<@32\>The A or Ap horizon has hue of 10YR, value of 2 or 3, and chroma
of 2 or less; or it is neutral in hue and has value of 2 or 3. It is
fine sandy loam or loamy fine sand or the mucky analogs of those
textures.

\<@32\>The BAg or BEg horizon, where present, has hue of 10YR, value of
4 or 5, and chroma of 1 or 2. It is sandy loam or loamy sand.

\<@32\>The Btg horizon has hue of 10YR or 5Y, value of 3 to 7, and
chroma of 1 or 2. It has mottles in shades of yellow, gray, brown, and
red. It is sandy clay loam or fine sandy loam.

\<@32\>The BCg horizon, where present, has hue of 10YR to 5Y, value of 4
to 7, and chroma of 1 or 2. It has mottles in shades of yellow, green,
or brown. It is up to 25 inches thick. It is sandy clay loam or fine
sandy loam.

\<@32\>The Cg horizon has hue of 10YR to 5Y, value of 4 to 7, and chroma
of 1 or 2. The texture ranges from sand to clay, sandy clay loam, sandy
loam, or loamy sand.