IDENTIFIERS
Current Taxon Name (Soil Name):
MARIAS
OSD
Series Extent
User Site ID:
S1962MT105001
User Pedon ID:
S1962MT105001
Lab Information:
Certified Lab Pedon Description -
no
Lab Source ID -
SSL
Lab Pedon # -
40A3336
NCSS Pedon Lab Data NASIS Record ID -
38451
Print Date:
11/21/2024
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:
48.4518814
Std. Longitude:
-107.2338028
Datum:
WGS84
Township:
31N
Range:
35E
Section:
7
PLSS Details:
550 feet E and 150 feet N of S 1/4 corner
Location Description:
Seven miles NW of Hinsdale on US Highway #2.
State:
Montana
County:
MT105—Valley
MLRA:
52—Brown Glaciated Plains
Non-MLRA Soil Survey Area:
MT105—Valley County, Montana
PEDON
Describers Name:
Grossman, Haderlie, Walker and Mogen.
Current Taxonomic Class:
Fine, montmorillonitic, frigid Udorthentic Chromusterts
Current Taxon Kind:
series
Pedon Type:
OSD pedon
Pedon Record Orgin:
Converted from PDP 3.x
Pedon #:
1
Correlated Information:
Soil Name -
MARIAS
PSC -
25 to 100 cm.
Classificaton Date -
2/1/2010
Sampled As Information:
Soil Name -
Marias
Classificaton Date -
8/20/1962
Dynamic Soil Properties:
Erosion Class -
0
Pedoderm Loose Cover Indicator -
no
Hydric:
no
SITE
Landscape:
plains
Drainage Class:
well
Surface Fragments:
Benchmark Soil?:
no
VEGETATION
SITE OBSERVATION
Observation Date:
8/20/1962 (actual site observation date)
Surface Cover Properties:
Site Obs. Cover Kind 1 -
crop cover
Site Obs. Cover Kind 2 -
row crop
Pedoderm Loose Cover Indicator -
no
Drained? -
no
Bedded Soil? -
no
Forest Plantation? -
no
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
2
—
—
671
—
180
381
—
—
4.4
18.9
-12.2
—
—
—
—
—
—
—
—
Ap—0 to 15 centimeters (0.0 to 5.9 inches); grayish brown (2.5Y 5/2), dark grayish brown (2.5Y 4/2), moist; clay; strong very fine granular structure; hard, friable, moderately sticky, very plastic; fragments; slight effervescence; abrupt boundary. Lab sample # 40A25987. Crust on surface following hard rains is 1/32 inch thick with outline of granules distinct.
A12—15 to 28 centimeters (5.9 to 11.0 inches); grayish brown (2.5Y 5/2), dark grayish brown (2.5Y 4/2), moist; clay; strong coarse subangular blocky parts to moderate very fine angular blocky structure; very hard, firm, moderately sticky, very plastic; fragments; slight effervescence; gradual boundary. Lab sample # 40A25988. Flat faces of blocks have glossy appearance.
A13—28 to 53 centimeters (11.0 to 20.9 inches); grayish brown (2.5Y 5/2), dark grayish brown (2.5Y 4/2), moist; clay; strong coarse subangular blocky parts to moderate very fine angular blocky structure; very hard, firm, moderately sticky, very plastic; slickensides (pedogenic); fragments; slight effervescence; gradual boundary. Lab sample # 40A25989. Few poorly defined slickensides with surfaces 30 degrees from horizontal; surfaces of blocks and of slickensides have glossy appearance.
A14—53 to 69 centimeters (20.9 to 27.2 inches); gray (2.5Y 5/1), dark grayish brown (2.5Y 4/2), moist; clay; strong coarse subangular blocky parts to moderate very fine angular blocky structure; distinct slickensides (pedogenic); fragments; slight effervescence; clear smooth boundary. Lab sample # 40A25990. Distinct slickensides having surfaces about 20 degrees to 40 degrees from horizontal, observable in the moist soil at below field capacity; slickenside surfaces are intersecting, with surfaces easily exposed 6 to 10 inches in diameter; surfaces of blocks have glossy appearance.
C1cs—69 to 91 centimeters (27.2 to 35.8 inches); gray (5Y 5/1), olive (5Y 5/3), moist; clay; moderate very coarse prismatic parts to moderate very fine granular structure; very hard, firm, moderately sticky, very plastic; 10 percent clay films on faces of peds; fine threadlike gypsum crystals, unspecified and 21 percent very coarse gypsum crystals, unspecified; fragments; slight effervescence; gradual boundary. Lab sample # 40A25991. patchy - phpvsfiid 184444; patchy - phpvsfiid 184444
C1cs2—91 to 122 centimeters (35.8 to 48.0 inches); gray (5Y 5/1), olive (5Y 5/3), moist; clay; moderate very coarse prismatic parts to moderate very fine granular structure; very hard, firm, moderately sticky, very plastic; 10 percent clay films on faces of peds; fine threadlike gypsum crystals, unspecified and 21 percent very coarse gypsum crystals, unspecified; fragments; slight effervescence. Lab sample # 40A25992. Horizon 27-48 inches split for purpose of sampling.; patchy - phpvsfiid 184445; patchy - phpvsfiid 184445
C2cs1—122 to 155 centimeters (48.0 to 61.0 inches); gray (5Y 5/1) and light gray (5Y 7/1), very dark gray (5Y 3/1), moist; clay; moderate very coarse prismatic parts to very fine granular structure; very hard, firm, moderately sticky, very plastic; 10 percent clay films on faces of peds; medium gypsum crystals, unspecified in cracks and 21 percent very coarse gypsum crystals, unspecified; fragments; slight effervescence; gradual boundary. Lab sample # 40A25993. patchy - phpvsfiid 184446; patchy - phpvsfiid 184446
C2cs2—155 to 191 centimeters (61.0 to 75.2 inches); gray (5Y 5/1) and light gray (5Y 7/1), very dark gray (5Y 3/1), moist; clay; moderate very coarse prismatic parts to very fine granular structure; very hard, firm, moderately sticky, very plastic; 10 percent clay films on faces of peds; medium gypsum crystals, unspecified in cracks and 3 percent very coarse gypsum crystals, unspecified; fragments; slight effervescence. Lab sample # 40A25994. Horizon 48-75 inches was split for sampling.; patchy - phpvsfiid 184447; patchy - phpvsfiid 184447
C3cs—191 to 221 centimeters (75.2 to 87.0 inches); gray (5Y 5/1), very dark gray (5Y 3/1), moist; clay; very fine granular parts to very coarse prismatic structure; hard, firm, moderately sticky, very plastic; 30 percent clay films on faces of peds; 3 percent gypsum masses and 1 percent gypsum crystals, unspecified in cracks; fragments; slight effervescence; gradual boundary. Lab sample # 40A25995. Distinct horizontal layers of light gray (5Y 7/1) 1/8 inch thick to 1 to 1 1/2 inches apart. Films on concave prism faces; common nodular clusters of gypsum, few horizontal seams.
IIC3—221 to 246 centimeters (87.0 to 96.9 inches); gray (5Y 6/1), dark gray (5Y 4/1), moist; stratified silty clay loam to silt; strong very fine subangular blocky parts to moderate medium platy structure; hard, friable, moderately sticky, moderately plastic; 3 percent very coarse gypsum masses; fragments; slight effervescence; clear irregular boundary. Lab sample # 40A25996
IIC4—246 to 272 centimeters (96.9 to 107.1 inches); light yellowish brown (2.5Y 6/3), dark grayish brown (2.5Y 4/2), moist; silt loam; moderate coarse platy structure; slightly hard, friable, slightly sticky, slightly plastic; 1 percent gypsum crystals, unspecified; fragments. Lab sample # 40A25997