LOCATION HUNTING UTEstablished Series
TAXONOMIC CLASS: Fine-silty, mixed, active, calcareous, mesic Aquic Torrifluvents
TYPICAL PEDON: Hunting loam--cultivated. (Colors are for air-dry soil unless otherwise noted.)
Ap--0 to 9 inches; light brownish gray (2.5Y 6/2) loam, dark grayish brown (2.5Y 4/2) moist; weak medium subangular blocky structure; hard, firm, slightly sticky and slightly plastic; few coarse and fine roots; few medium and fine pores; strongly effervescent (16 percent calcium carbonate equivalent)l, carbonates are finely disseminated; moderately alkaline (pH 8.0); gradual smooth boundary. (6 to 9 inches thick)
C1--9 to 27 inches; light brownish gray (2.5Y 6/2) loam, dark grayish brown (2.5Y 4/2) moist; weak subangular blocky structure; hard, friable, slightly sticky and slightly plastic; few fine roots; few medium and fine pores; strongly effervescent (17 percent calcium carbonate equivalent), carbonates are finely disseminated; moderately alkaline (pH 8.0); clear smooth boundary. (9 to 20 inches thick)
C2--27 to 30 inches; light brownish gray (2.5Y 6/2) clay loam, dark grayish brown (2.5Y 4/2) moist; massive; hard, firm, slightly sticky and slightly plastic; few fine roots; few fine pores; strongly effervescent (13 percent calcium carbonate equivalent), carbonates are finely disseminated; 4 percent gypsum content; moderately alkaline (pH 7.9); gradual smooth boundary. (0 to 5 inches thick)
C3--30 to 60 inches; grayish brown (2.5Y 5/2) loam, dark grayish brown (2.5Y 4/2) moist; massive; slightly hard, friable; very few fine roots; few fine pores; few medium distinct dark yellowish brown (10YR 4/6) redoximorphic concentrations; 4 percent gypsum content; strongly effervescent; moderately alkaline (pH 8.2).
TYPE LOCATION: Emery County, Utah; about 2.5 miles northeast of Clawson; 950 feet west and 300 feet south of the NE corner of sec. 19, T. 19 S., R. 8 E., SLBM; Castle Dale USGS quad; lat. 39 degrees 9 minutes 39 seconds N. and long. 111 degrees 3 minutes 37 seconds W. NAD83.
RANGE IN CHARACTERISTICS: Soil temperatures are 47 to 54 degrees F. Hunting soils have distinct redoximorphic concentrations at some depth between 20 and 40 inches, and have water tables between 20 and 40 inches in some seasons.
It ranges from very slightly saline to strongly saline. Carbonate content ranges from 10 to 25 percent. Gypsum veining occurs in the lower C horizons below a depth of 12 inches. Texture of the particle-size control section is silt loam, very fine sandy loam, clay loam, or loam and averages 18 to 30 percent clay and less than 15 percent sand coarser than very fine sand.
The A and C horizons have hue of 10YR to 5Y, with dry color values of 5 to 7, moist values of 4 to 6, and chroma of 2 or 3.
Saline phases with Czg horizons below a depth of 23 inches are recognized. These horizons have up to 35 percent shale parachanners and EC of 8 to 20 mmhos/cm.
COMPETING SERIES: This is the Anco (UT) series. Anco does not have gypsum in the particle-size control section and has soil moisture regime that is aridic bordering ustic and aquic.
GEOGRAPHIC SETTING: These soils are on alluvial fans, stream terraces, alluvial flats, flood plains and flood-plain steps on narrow valley floors. They are developed in alluvium from marine shale and sandstone. The climate is arid, with mean annual temperatures of 45 to 53 degrees F. Mean annual precipitation ranges from 6 to 10 inches. Freeze-free period is from 110 to 160 days.
GEOGRAPHICALLY ASSOCIATED SOILS: These are the Ravola, Billings, Libbings, Rafael, and Ferron soils. Ravola soils do not have redoximorphic features. Billings soils have clay loam or silty clay loam particle-size control sections. Libbings soils are moderately deep, have a gypsic horizon and have an aquic moisture regime. Ferron and Rafael soils have redoximorphic features above 20 inches.
DRAINAGE AND PERMEABILITY: Somewhat poorly drained; medium to low runoff; moderate or moderately slow permeability.
USE AND VEGETATION: Cultivated irrigated areas produce alfalfa, grain and pasture. Potential vegetation is alkali sacaton, Indian ricegrass, and galleta grass.
DISTRIBUTION AND EXTENT: Eastern Utah and western Colorado. This series is moderately extensive. MLRA 34B.
MLRA SOIL SURVEY REGIONAL OFFICE (MO) RESPONSIBLE: Bozeman, Montana
SERIES ESTABLISHED: Carbon County, Utah, 1982.
REMARKS: Diagnostic horizons and features recognized in this pedon are:
Ochric epipedon - the layer from surface to 9 inches (Ap horizons)
Redoximorphic features - in the zone from 30 to 60 inches (C3 horizon)
Gypsum accumulations - in the zone from 27 to 60 inches (C2 and C3 horizons)
The classification was changed from Aquic Udifluvent to Aquic Torrifluvents in 9/94. The placement is tentative because the profile does not have redox depletions of chroma 2 or less above 100 centimeters. However, there are redoximorphic concentrations and the inference that aquic conditions exist above 100 centimeters. Additional field work is needed.
Taxonomic version: Eleventh Edition, 2010