IDENTIFIERS
Current Taxon Name (Soil Name):
Unknown
OSD
Series Extent
User Site ID:
S2002IL-099-015
User Pedon ID:
S2002IL099015
Lab Information:
Certified Lab Pedon Description -
no
Lab Source ID -
SSL
Lab Pedon # -
03N0159
NCSS Pedon Lab Data NASIS Record ID -
14995
Print Date:
4/21/2025
LOCATION
Location In Web Soil Survey
AOI is roughly a square mile and pedon is marked in the center.
Location in SoilWeb
Location in Google Maps
Std. Latitude:
41.3213882
Std. Longitude:
-88.9208298
Datum:
WGS84
Township:
T. 33 N.
Range:
R. 3 E.
Section:
19
Location Description:
Ottawa Township; Starved Rock, ILL. Topographic Quadrangle, Buffalo Rock State Park, La Salle County, Illinois
State:
Illinois
County:
IL099—La Salle
MLRA:
108—Illinois and Iowa Deep Loess and Drift
Non-MLRA Soil Survey Area:
IL099—La Salle County, Illinois
7.5 Minute USGS Quad:
41088-C8—Starved Rock, Illinois
PEDON
Describers Name:
Karla D. Petges
Current Taxonomic Class:
Fine-silty, mixed, acid, mesic Alfic Udarents
Pedon Type:
TUD pedon
Pedon Purpose:
full pedon description
Pedon Record Orgin:
Windows Pedon
Pedon #:
15
Correlated Information:
Soil Name -
Unknown
PSC -
25 to 100 cm.
Classificaton Date -
8/19/2008
Soil Taxonomic Edition -
eighth edition
Moisture Class -
udic
Sampled As Information:
Soil Name -
Strip Mine
Classificaton Date -
10/23/2002
Dynamic Soil Properties:
Pedoderm Loose Cover Indicator -
no
Hydric:
no
SITE
Parent Material:
Silty Clay Loam Till over Residuum over Shale, Limestone and Sandstone
Anthropogenic Feature:
spoil pile
Hill Slope Profile:
backslope
Slope Complexity:
simple
Slope Shape Across:
linear
Slope Shape Down:
linear
Runoff:
medium
Drainage Class:
moderately well
Surface Fragments:
Benchmark Soil?:
no
VEGETATION
SITE OBSERVATION
Observation Date:
10/23/2002 (actual site observation date)
Air Photo ID:
A.S. 57
Surface Cover Properties:
Site Obs. Cover Kind 1 -
tree cover
Site Obs. Cover Kind 2 -
other grass/herbaceous cover
Pedoderm Loose Cover Indicator -
no
Drained? -
no
Bedded Soil? -
no
Forest Plantation? -
no
Current Weather -
partly cloudy
Pedon Diagnostic Features
Feature Kind
Feature Depth L-H
Feature Thickness L-RV-H
cm
ochric epipedon
0—8
—-
Setting and Climate
Slope
Slope Length USLE
Upslope Length
Elev.
Corr. Elev
Aspect
MAP
REAP
FFD
MAAT
MSAT
MWAT
MAST
MSST
MWST
MFFP
PE Index
Climate Station ID
Climate Station Name
Climate Station Type
%
m
degrees
mm
mm
C
mm
3
—
—
156
—
203
—
—
—
—
—
—
—
—
—
—
—
—
—
—
A—0 to 8 centimeters (0.0 to 3.1 inches); 90 percent light olive brown (2.5Y 5/3) and 10 percent gray (2.5Y 5/1), pale yellow (2.5Y 7/3), dry; silt loam; weak coarse subangular blocky structure; firm; 3.0 very fine and fine roots; fine prominent yellowish brown (10YR 5/6) iron masses throughout; 1 percent by volume mixed fragments; moderately acid, pH 6.0; abrupt smooth boundary. Lab sample # 03N00820; very dry when described; observed in pit, small
C1—8 to 28 centimeters (3.1 to 11.0 inches); 96 percent gray (2.5Y 5/1) and 4 percent light yellowish brown (2.5Y 6/4) silty clay loam; very firm; 1.0 very fine roots; 1 percent fine prominent strong brown (7.5YR 5/6) iron masses throughout; fragments; strongly acid, pH 5.4; clear wavy boundary. Lab sample # 03N00821; moderately dry when described;
C2—28 to 61 centimeters (11.0 to 24.0 inches); 60 percent light olive brown (2.5Y 5/4) and 40 percent gray (2.5Y 5/1) silty clay loam; firm; 1.0 very fine roots; 5 percent faint olive brown (2.5Y 4/4) clay films throughout; 1 percent fine prominent dark reddish gray (5YR 4/2) iron masses on horizontal faces of peds and 1 percent fine prominent yellowish brown (10YR 5/6) iron masses throughout; 2 percent by volume mixed fragments; extremely acid, pH 3.9; clear wavy boundary. Lab sample # 03N00822; slightly dry when described;. patchy - phpvsfiid 386846; patchy - phpvsfiid 386846
C3—61 to 84 centimeters (24.0 to 33.1 inches); 95 percent gray (2.5Y 5/1) and 5 percent light olive brown (2.5Y 5/4) silty clay loam; very firm; 1 percent fine and medium prominent dark reddish gray (5YR 4/2) iron masses on horizontal faces of peds; fragments; extremely acid, pH 4.0; clear wavy boundary. Lab sample # 03N00823; slightly dry when described;
C4—84 to 117 centimeters (33.1 to 46.1 inches); 90 percent light olive brown (2.5Y 5/4) and 10 percent gray (2.5Y 5/1) silt loam; firm; 15 percent faint olive brown (2.5Y 4/4) clay films throughout; 2 percent fine and medium distinct light brownish gray (2.5Y 6/2) iron depletions throughout and 2 percent medium distinct yellowish brown (10YR 5/6) masses of oxidized iron throughout and 4 percent fine prominent black (10YR 2/1) manganese nodules throughout; 1 percent by volume mixed fragments; extremely acid, pH 3.6; abrupt smooth boundary. Lab sample # 03N00824; slightly moist when described;. patchy - phpvsfiid 386847; patchy - phpvsfiid 386847
C5—117 to 165 centimeters (46.1 to 65.0 inches); 95 percent dark gray (2.5Y 4/1) and 5 percent light yellowish brown (2.5Y 6/4) silty clay loam; very firm; 5 percent medium prominent yellowish brown (10YR 5/6) iron masses throughout; 1 percent by volume mixed fragments; extremely acid, pH 3.8; clear wavy boundary. Lab sample # 03N00825; slightly moist when described;
C6—165 to 190 centimeters (65.0 to 74.8 inches); 90 percent light olive brown (2.5Y 5/4) and 10 percent dark gray (2.5Y 4/1) silt loam; firm; 10 percent faint olive brown (2.5Y 4/4) clay films throughout; 2 percent fine prominent black (10YR 2/1) manganese nodules throughout and 2 percent medium prominent yellowish brown (10YR 5/6) iron masses throughout; 2 percent by volume mixed fragments; extremely acid, pH 3.7; abrupt smooth boundary. Lab sample # 03N00826; slightly moist when described;. patchy - phpvsfiid 386848; patchy - phpvsfiid 386848
C7—190 to 203 centimeters (74.8 to 79.9 inches); 95 percent dark gray (2.5Y 4/1) and 5 percent light yellowish brown (2.5Y 6/4) silty clay loam; very firm; 5 percent medium prominent dark yellowish brown (10YR 4/6) iron masses on horizontal faces of peds and 3 percent medium prominent yellowish brown (10YR 5/6) iron masses throughout; fragments; extremely acid, pH 3.8. Lab sample # 03N00827; slightly moist when described;