APPCOR12138

• Permit No: C1980002
• IBM Index Class Name: Application Correspondence
• Media Type: D
• Archive: No

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A&B-9 to 15 inches, mixed colors of pinkish-gray (5YR 7/2)
and reddish-brown (5YR 5/4) stony clay loam,
' reddish gray (5YR 5/2) and reddish brown (5YR 5f4)
moist; moderate, medium and fine, subangular
blocky structure; slightly hard, friable; clayey B2t
material imbedded in light-colored matrix similar
to A2 material; thin patchy clay films on peds in
clayey material; dark-colored ferromagnesian grains;
about 30 percent stones, cobblestones, and gravel;
t pH 5.4 gradual, wavy boundary.
B2t-15 to 32 inches, reddish-brown (5YR 5/4) extremely
stony clay, reddish brown (5YR 4j4) moist; strong,
medium and fine, subangular blocky structure;
extremely hard, very firm; thin continuous clay
films on ped surfaces and on surface of rock
fragments; many, dark-colored, ferromagnesian
t grains; about 10 percent prominent seams and
streaks of red (2. 5YR 5/8); about 60 percent
basaltic stones, cobblestones, and gravel; pH 5.8;
' gradual, wavy boundary.
Bat-32 to 40 inches, reddish-brown (5YR 5/4) extremely
stony and gravelly clay, reddish brown (5YR 4/4)
moist; weak, coarse, subangular blocky structure;
' very hard, firm; common, thin, patchy clay films
on ped faces; many, magnetic, ferromagnesian-rich
grains; about 70 percent stones, cobblestones,
' and gravel; pH 6.4; gradual, wavy boundary.
C-40 to 60 inches, reddish-brown (5YR 5/4) extremely
stony clay, reddish brown (5YR 4/4) moist; massive;
' very hard, firm; about 70 percent stones, cobble-
stones, and gravel; pH 6.4.
The O1 horizon ranges from 1 to 5 inches in thickness.
The A2 horizon is typically stony loam, but in places is
' stony loam. It ranges from 6 to 14 inches in thickness
and is pinkish gray, brown, or white. It is 10 to
' S0 percent coarse fragments. The B2t horizon is 35 to
80 percent coarse fragments. Tt is reddish brown or
light reddish brown. Reaction is medium acid to very
strongly acid.
' Nutras stony loam, 10 to 50 percent slopes (NuF).-This
soil is in the Powderhorn drainage in the southern part of
the survey area and in the Red Mountain area in the northern
part. In old burned-over areas, which are now in aspen, the
' surface layer is light brownish gray and about 3 inches thick.
Included with this soil in mapping are small areas of
' Vulcan and Wetterhorn soils and areas of Stony rockland and
Rock outcrop in the Powderhorn Creek drainage. Included soils
make up less than 15 percent of the total acreage.
This soil is well suited to trees. Almost all the acreage
' is forest. Where forest fires and heavy logging, have occurred,
the forest is dominantly aspen and sma.il numbers of conifers.
Runoff is medium, and the erosion hazard is moderate.
' Capability unit VIIe-2 nonirrigated; woodland group 4."
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