IDENTIFIERS
Current Taxon Name (Soil Name):
WORTMAN
OSD
Series Extent
User Site ID:
S1971SD121001
User Pedon ID:
S1971SD121001
Vegetation Plot ID:
S1971SD121001
Lab Information:
Certified Lab Pedon Description -
no
Lab Source ID -
SSL
Lab Pedon # -
40A2512
NCSS Pedon Lab Data NASIS Record ID -
37208
Print Date:
2/16/2025
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:
43.3172226
Std. Longitude:
-100.6311111
Datum:
WGS84
Township:
39N
Range:
28W
Section:
34
PLSS Details:
150 feet south and 300 feet east of NW corner
Map Unit:
WbA—WANBLEE-WORTMAN SILT LOAMS, 0 TO 6 PERCENT SLOPES
State:
South Dakota
County:
SD121—Todd
MLRA:
64—Mixed Sandy and Silty Tableland and Badlands
Non-MLRA Soil Survey Area:
SD121—Todd County, South Dakota
PEDON
Describers Name:
P. R. Johnson and R. F. Springer.
Current Taxonomic Class:
Fine, montmorillonitic, mesic Aridic Natrustolls
Pedon Record Orgin:
Converted from PDP 3.x
Pedon #:
1
Correlated Information:
Soil Name -
WORTMAN
PSC -
15 to 33 cm.
Classificaton Date -
7/16/2007
Moisture Class -
aridic (torric)
Sampled As Information:
Soil Name -
Wortman
Classificaton Date -
6/1/1971
Dynamic Soil Properties:
Erosion Class -
1
Pedoderm Loose Cover Indicator -
no
Hydric:
no
SITE
Landscape:
upland
Drainage Class:
well
Surface Fragments:
Benchmark Soil?:
no
VEGETATION
SITE OBSERVATION
Observation Date:
6/1/1971 (actual site observation date)
Surface Cover Properties:
Pedoderm Loose Cover Indicator -
no
Drained? -
no
Bedded Soil? -
no
Forest Plantation? -
no
Vegetation Plot Plants
Plant Symbol
Scientific Name
National Vernacular Name
Plant Type Group
Canopy Cover %
Vegetation Stata Level
BOGR2
PASM
Bouteloua gracilis
Pascopyrum smithii
blue grama
western wheatgrass
—
—
—
—
—
—
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
1
—
—
—
—
254
—
—
8.9
—
—
—
—
—
—
—
—
—
—
A1—0 to 10 centimeters (0.0 to 3.9 inches); dark gray (10YR 4/1), very dark grayish brown (10YR 3/2), moist; silt loam; weak fine granular structure; soft, friable, slightly sticky; fragments; abrupt smooth boundary. Lab sample # 40A19723
A2—10 to 15 centimeters (3.9 to 5.9 inches); gray (10YR 5/1), very dark gray (10YR 3/1), moist; silt loam; weak coarse platy parts to weak very fine granular structure; hard, friable, slightly sticky; fragments; abrupt irregular boundary. Lab sample # 40A19724
B21t—15 to 25 centimeters (5.9 to 9.8 inches); dark grayish brown (10YR 4/2), very dark grayish brown (10YR 3/2), moist; clay; moderate medium columnar parts to strong very fine and fine subangular blocky structure; extremely hard, firm, moderately sticky, moderately plastic; gray (10YR 5/1), moist, coats on tops of soil columns; fragments; clear smooth boundary. Lab sample # 40A19725. Shiny surfaces on peds.; continuous - phpvsfiid 196101; continuous - phpvsfiid 196101
B22t—25 to 33 centimeters (9.8 to 13.0 inches); brown (10YR 5/3), brown (10YR 4/3), moist; clay loam; weak medium prismatic parts to strong very fine and fine subangular blocky structure; very hard, firm, moderately sticky, moderately plastic; brown (10YR 4/3), moist, coats on faces of peds; 10 percent by volume 2-39-75 millimeter siltstone, unspecified fragments; clear wavy boundary. Lab sample # 40A19726. continuous - phpvsfiid 196102; continuous - phpvsfiid 196102
B3—33 to 46 centimeters (13.0 to 18.1 inches); pale brown (10YR 6/3), brown (10YR 5/3), moist; clay loam; weak coarse subangular blocky structure; hard, friable, slightly sticky; 1 percent fine carbonate threads and 1 percent fine lime masses; 10 percent by volume 2-39-75 millimeter siltstone, unspecified fragments; strong effervescence; gradual wavy boundary. Lab sample # 40A19727
C1—46 to 66 centimeters (18.1 to 26.0 inches); very pale brown (10YR 7/3), brown (10YR 5/3), moist; loam; massive; hard, friable, slightly sticky; 1 percent fine lime masses and 1 percent fine carbonate threads; 30 percent by volume 2-39-75 millimeter siltstone, unspecified fragments; strong effervescence; gradual smooth boundary. Lab sample # 40A19728
C2—66 to 89 centimeters (26.0 to 35.0 inches); very pale brown (10YR 7/3), brown (10YR 5/3), moist; loam; massive; hard, friable, slightly sticky; 21 percent fine and medium lime masses; 75 percent by volume 2-39-75 millimeter siltstone, unspecified fragments; strong effervescence; clear wavy boundary. Lab sample # 40A19729
C3—89 to 132 centimeters (35.0 to 52.0 inches); very pale brown (10YR 8/2) and very pale brown (10YR 8/3), light yellowish brown (10YR 6/4), moist; unweathered bedrock; fragments; strong effervescence. Lab sample # 40A19730. Easily penetrated with hand tools.
C4—132 to 165 centimeters (52.0 to 65.0 inches); very pale brown (10YR 8/3), light yellowish brown (10YR 6/4), moist; unweathered bedrock; fragments; strong effervescence. Lab sample # 40A19731. Easily penetrated with hand tools.