LOCATION FORERIGHT WY
Tentative Series
TIK-DPG-DEW
04/2025
FORERIGHT SERIES
Depth class: Very deep
Drainage class: Well drained
Saturated hydraulic conductivity class: High
Parent material: Slope alluvium or colluvium weathered from interbedded sedimentary
Geomorphic location: Hillslopes, fan remnants, eroded fan remnants, escarpments, cuestas, relict stream terraces
Slope range: 1 to 60 percent slopes
Mean annual temperature: 4 degrees C (39 degrees F)
Mean annual precipitation: 280 millimeters (11 inches)
TAXONOMIC CLASS:
Fine-loamy, mixed, superactive, frigid Aridic Haplustalfs
TYPICAL PEDON: Foreright gravelly sandy loam in rangeland (Colors are for dry soil unless otherwise noted.)
A--0 to 3 centimeters; pale brown (10YR 6/3) gravelly sandy loam, brown (10YR 5/3) moist; weak medium subangular blocky parts to single grain; soft, very friable, nonsticky, nonplastic; many fine and common medium roots throughout; many fine vesicular pores; 15 percent gravels; slightly alkaline (pH 7.4); gradual wavy boundary.
AB--3 to 7 centimeters; pinkish gray (7.5YR 6/2) sandy loam, brown (7.5YR 5/3) moist; moderate medium subangular blocky structure; slightly hard, friable, nonsticky, nonplastic; many fine and common medium roots throughout; many fine tubular pores; 5 percent gravels; neutral (pH 7.2); clear wavy boundary.
Bt1--7 to 19 centimeters; brown (7.5YR 5/3) sandy clay loam, brown (7.5YR 4/4) moist; strong medium prismatic structure; moderately hard, firm, moderately sticky, moderately plastic; many fine and common medium roots throughout; many fine tubular pores; 3 percent gravels; 75 percent distinct clay films on all faces of peds; slightly alkaline (pH 7.6); clear wavy boundary.
Bt2--19 to 42 centimeters; brown (7.5YR 5/3) sandy clay loam, brown (7.5YR 4/3) moist; strong medium prismatic structure; moderately hard, firm, moderately sticky, moderately plastic; common fine and few medium roots throughout; many fine tubular pores; 80 percent distinct clay films on all faces of peds; 3 percent fine gravels; very slightly effervescent; moderately alkaline (pH 8.4); clear wavy boundary.
Btk1--42 to 69 centimeters; light brown (7.5YR 6/3) sandy clay loam, brown (7.5YR 5/3) moist; strong medium prismatic structure; hard, very firm, moderately sticky, moderately plastic; common fine and few medium roots throughout; many fine tubular pores; 40 percent distinct clay films on all faces of peds; 15 percent medium irregular indurated cemented calcium carbonate masses throughout; 5 gravels; strongly effervescent; strongly alkaline (pH 8.6); clear wavy boundary.
Btk2--69 to 84 centimeters; pale brown (10YR 6/3) clay loam, yellowish brown (10YR 5/4) moist; moderate medium subangular blocky structure; hard, very firm, very sticky, very plastic; common fine and few medium roots throughout; common fine tubular pores; 30 percent distinct clay films on all faces of peds; 3 percent fine threadlike indurated cemented calcium carbonate masses throughout; slightly effervescent; strongly alkaline (pH 8.6); clear wavy boundary.
Btk3--84 to 200 centimeters; light yellowish brown (2.5Y 6/3) clay loam, light olive brown (2.5Y 5/3) moist; moderate medium subangular blocky structure; moderately hard, firm, moderately sticky, moderately plastic; common fine and few medium roots throughout; common fine tubular pores; 15 percent distinct clay films on all faces of peds; 15 percent medium irregular indurated cemented calcium carbonate masses infused into the matrix along faces of peds; slightly effervescent; moderately alkaline (pH 8.4).
TYPE LOCATION:
Sublette County, WY
USGS Quadrangle: Square Top
Latitude: 42.5530548
Longitude: -109.5872192
Datum: WGS84
Coordinates source: Hand-held GPS
RANGE IN CHARACTERISTICS:
Depth to argillic horizon: 4 to 32 centimeters
Depth to secondary calcium carbonates: 27 to 100 centimeters
Particle-size control section (weighted averages):
Clay content-19 to 33 percent
Sand content-35 to 70 percent
Total rock fragments-0 to 15 percent
A horizon
Hue-7.5YR to 2.5Y
Value-3 to 7 dry; 2 to 5 moist
Chroma-2 to 4 dry; 1 to 3 moist
Texture (less than 2 mm fraction)-Loam, fine sandy loam, sandy loam, or sandy clay loam
Clay content-11 to 23 percent
Rock fragments-0 to 45 percent gravels
Calcium carbonate equivalent-0 to 5 percent
Sodium absorption ratio-0 to 3
Reaction-pH 6.4 to 8.2
Thickness-3 to 11 centimeters
Bt horizon(s)
Hue-7.5YR to 2.5Y
Value-4 to 7 dry; 3 to 6 moist
Chroma-2 to 4 dry; 2 to 6 moist
Texture (less than 2 mm fraction)-Loam, sandy clay loam, or clay loam
Clay content-20 to 34 percent
Rock fragments-0 to 30 percent gravels or paragravels
Calcium carbonate equivalent-0 to 5 percent
Sodium absorption ratio-0 to 3
Reaction-pH 7.0 to 8.4
Thickness-21 to 98 centimeters
Btk/Bk horizon(s) (when present)
Hue-7.5YR to 2.5Y
Value-4 to 6 dry; 3 to 5 moist
Chroma-3 to 6
Texture (less than 2 mm fraction)-Loam, sandy clay loam, clay loam, or clay
Clay content-18 to 42 percent
Rock fragments-0 to 45 percent gravels or paragravels
Calcium carbonate equivalent-5 to 15 percent
Sodium absorption ratio-0 to 3
Reaction-pH 7.8 to 8.6
Thickness-0 to 158 centimeters
C/BC/BCk horizon(s) (when present)
Hue-2.5Y to 5Y
Value-4 to 7 dry; 3 to 7 moist
Chroma-2 to 6
Texture (less than 2 mm fraction)-Sand, loamy sand, coarse sandy loam, fine sandy loam, sandy loam, loam, sandy clay loam, or clay loam
Clay content-6 to 30 percent
Rock fragments-0 to 45 percent; 0 to 30 percent gravels or paragravels, 0 to 15 percent channers
Calcium carbonate equivalent-0 to 15 percent
Sodium absorption ratio-0 to 12
Reaction-pH 7.6 to 8.8
Thickness-0 to 135 centimeters
COMPETING SERIES:
Bluemod (WY) - is moderately deep to paralithic contact
Bondoe (MT) - is found at elevations from 1,219 to 1,524 meters (4,000 to 5,000 feet)
Bonfri (MT) - is moderately deep to paralithic contact
Bonhigh (WY) - is moderately deep to paralithic contact
Chinatown (MT) - is moderately deep to lithic contact
Fattig (MT) - is moderately deep to lithic contact
Ferball (MT) - is found at elevations from 1,158 to 1920 meters (3,800 to 6,300 feet)
Foreleft (MT) - is found at elevations from 683 to 1,524 meters (2,240 to 5,000 feet)
Jewel (WY) - is deep to paralithic contact
Mckaylake (WY) - has gypsum accumulation
Mountairy (WY) - has gypsum accumulation
Overlandtrail (WY) - has a lithological discontinuity
Raghigh (WY) - does not have identifiable secondary calcium carbonates present
Raghorn (MT) - derived from granite
Seminoe (WY) - has secondary calcium carbonates in the top 20 centimeters
Swingstation (WY) - has gypsum accumulation
Toothaker (WY) - is moderately deep to paralithic contact
Zagplat (WY) - is deep to paralithic contact
GEOGRAPHIC SETTING:
Parent material: Slope alluvium or colluvium weathered from interbedded sedimentary
Landform: Hillslopes, fan remnants, eroded fan remnants, escarpments, cuestas, relict stream terraces
Slope ranges: 1 to 60 percent
Mean annual temperature range: 1.1 to 5.0 degrees C (34 to 41 degrees F)
Mean annual precipitation range: 228 to 305 millimeters (9 to 12 inches)
Frost-free period: 30 to 80 days
Elevation: 1,900 to 2,360 meters (6,233 to 7,448 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
Saturated Hydraulic Conductivity: 0.5 to 50 um/sec
USE AND VEGETATION:
Foreright soils are primarily used for grazing. The potential native vegetation is Wyoming big sage, western wheatgrass, squirreltail, Letterman's needlegrass, and other perennial grasses, forbs, and shrubs.
DISTRIBUTION AND EXTENT:
Foreright soils are of small extent in western Wyoming; MLRA 34A
SOIL SURVEY REGIONAL OFFICE (SSRO) RESPONSIBLE: Bozeman, Montana
SERIES PROPOSED:
Sublette County, WY 2004. The Foreright series name is a coined phrase.
REMARKS:
Typical Pedon Taxonomic Features:
Ochric epipedon-0 to 7 centimeters (A horizon)
Argillic horizon-7 to 200 centimeters (Bt1, Bt2, Btk1, Btk2, and Btk3 horizons)
Identifiable secondary calcium carbonates-42 to 200 centimeters (Btk1, Btk2, Btk3 horizons)
Particle-size control section-7 to 57 centimeters (Bt1, Bt2, and part of the Btk1 horizons)
Taxonomic Version: Keys to Soil Taxonomy, 13th edition, (2022)
National Cooperative Soil Survey
U.S.A.