LOCATION SWEETDISE WY
Tentative Series
TIK-DPG-DEW
02/2025
SWEETDISE SERIES
Depth class: Moderately deep
Drainage class: Well drained and excessively well drained
Saturated hydraulic conductivity: High
Parent material: Eolian deposits and slope alluvium or colluvium over residuum weathered from sandstone.
Geomorphic location: Dune fields or hillslopes
Slope range: 2 to 20 percent
Mean annual temperature: 4.5 degrees C (40 degrees F)
Mean annual precipitation: 205 millimeters (8 inches)
Taxonomic Class:
Coarse-loamy, mixed, superactive, frigid Ustic Haplargids
Typical Pedon:
Sweetdise fine sandy loam in rangeland. (Colors are for dry soil unless otherwise noted.)
A--0 to 10 centimeters; brown (10YR 5/3) fine sandy loam, olive brown (2.5Y 4/3) moist; weak thin platy structure; loose, nonsticky, nonplastic; many very fine and fine roots throughout; many very fine and fine interstitial pores; neutral (pH 6.6); clear smooth boundary.
Bt1--10 to 25 centimeters; yellowish brown (10YR 5/4) fine sandy loam, dark yellowish brown (10YR 3/4) moist; moderate medium subangular blocky structure; soft, very friable, slightly sticky, slightly plastic; many very fine and fine roots throughout; many very fine and fine interstitial pores; 15 percent clay bridging between sand grains; neutral (pH 7.0); clear smooth boundary.
Bt2--25 to 39 centimeters; dark yellowish brown (10YR 4/4) fine sandy loam, brown (10YR 4/3) moist; moderate medium subangular blocky structure; soft, very friable, slightly sticky, slightly plastic; common very fine and many fine roots throughout; common very fine and many fine interstitial pores; 20 percent clay bridging between sand grains; neutral (pH 7.2); clear smooth boundary.
C1--39 to 89 centimeters; yellowish brown (10YR 5/4) loamy sand, dark yellowish brown (10YR 4/4) moist; single grain; loose, nonsticky, nonplastic; common very fine and fine roots throughout; common very fine and fine interstitial pores; slightly alkaline (pH 7.4); clear smooth boundary.
C2--89 to 96 centimeters; light yellowish brown (2.5Y 6/4) loamy sand, olive brown (2.5Y 4/3) moist; single grain; loose, nonsticky, nonplastic; common fine roots throughout; common fine interstitial pores; very slightly effervescent; moderately alkaline (pH 8.0) clear smooth boundary.
R--96 centimeters; bedrock, lithic
Type Location:
Sweetwater County, WY
USGS Quadrangle: Clay Buttes SW
Latitude: 41.83993
Longitude: -109.37887
Datum: WGS84
Coordinates source: Hand-held GPS
Range in Characteristics:
Depth to argillic horizon--5 to 10 centimeters
Depth to lithic contact--53 to 96 centimeters
Particle-size control section (weighted average):
Clay content--10 to 17 percent
Sand content--75 to 80 percent
Total rock fragments--0 to 15 percent
A horizon:
Hue--10YR or 2.5Y
Value--5 to 7 dry; 4 or 5 moist
Chroma--3 dry; 3 or 4 moist
Texture (less than 2 mm fraction)--Fine sandy loam, loamy fine sand, or loamy sand
Clay content--3 to 10 percent
Rock fragments--0 to 10 percent; 0 to 5 gravels, 0 to 10 percent channers
Reaction--pH 6.4 to 7.8
Thickness--5 to 10 centimeters
Bt horizons:
Hue--10YR
Value--4 to 6 dry; 3 to 5 moist
Chroma--3 or 4
Texture (less than 2 mm fraction)--Fine sandy loam or sandy loam
Clay content--6 to 16 percent
Rock fragments--0 to 14 percent channers
Reaction--pH 6.8 to 7.8
Thickness--13 to 29 centimeters
BC horizons: (when present)
Hue--2.5Y
Value--5 dry or moist
Chroma--6 dry or moist
Texture (less than 2 mm fraction)--Loamy fine sand
Clay content--4 to 8 percent
Reaction--pH 7.8 to 8.4
Thickness--0 to 13 centimeters
C horizons:
Hue--10YR or 2.5Y
Value--5 to 7 dry; 4 or 6 moist
Chroma--4 dry; 3 or 4 moist
Texture (less than 2 mm fraction)--Loamy sand, loamy fine sand, or sandy loam
Clay content--4 to 13 percent
Rock fragments--0 to 15 percent; 0 to 15 percent gravels, 0 to 10 percent channers; 0 to 55 percent parachanners
Sodium absorption ratio--0 to 12
Reaction--pH 7.2 to 8.8
Thickness--20 to 60 centimeters
Competing Series:
Cotha (WY)--is moderately deep to paralithic contact
Ruedloff (CO)--is very deep
Ryan Park (WY, CO)--is very deep
Ryark (WY)--is very deep
Geographic Setting:
Parent material: Eolian deposits and slope alluvium or colluvium over residuum weathered from sandstone.
Landform: Dune fields or hillslopes
Slope ranges: 2 to 20 percent
Mean annual temperature range: 2.5 to 7.0 degrees C (36.5 to 44.6 degrees F)
Mean annual precipitation range:180 to 230 millimeters (7 to 9 inches)
Frost-free period: 50 to 100 days
Elevation: 1940 to 2170 meters (6365 to 7120 feet)
Climate: Long, cold winters; cool, moist springs; short, warm summers.
Geographically Associated Soils:
None listed.
Drainage and Saturated Hydraulic Conductivity:
Drainage class: Well drained and excessively well drained
Saturated Hydraulic Conductivity: 15 to 50 m/sec
Use and Vegetation:
Sweetdise soils are primarily used for rangeland. The potential native vegetation is Wyoming big sagebrush, Indian ricegrass, thickspike wheatgrass, and needle and thread.
Distribution and Extent:
Sweetdise soils are of small extent in southwestern Wyoming; MLRA 34A.
Soil Survey Region (SSR) Responsible:
Bozeman, Montana
Series Proposed:
Sweetwater County, WY 2021. Sweetdise is a coined phrase.
Remarks:
Typical Pedon Taxonomic Features:
Ochric epipedon--0 to 10 centimeters (A horizon)
Argillic horizon--10 to 39 centimeters (Bt1 and Bt2 horizons)
Lithic contact--96 centimeters
Particle size control section--10 to 39 centimeters
Taxonomic Version: Keys to Soil Taxonomy, 13th edition (2022)
National Cooperative Soil Survey
U.S.A.