LOCATION SWEATBEE                WY

Established Series
Rev. JSH/MCS
12/2022

SWEATBEE SERIES


The Sweatbee series consists of very deep, well drained soils formed in alluvium and eolian material derived from mixed sources. Sweatbee soils are on stream terraces and terrace breaks. Slopes are 0 to 20 percent. The mean annual precipitation is about 13 inches. The mean annual temperature is about 47 degrees.

TAXONOMIC CLASS: Coarse-loamy, mixed, superactive, mesic Aridic Calciustepts

TYPICAL PEDON: Sweatbee sandy clay loam--on a nearly level slope, utilized as irrigated cropland. (Colors are for dry soil unless otherwise stated.)

Ap--0 to 11 inches; brown (10YR 5/3) sandy clay loam, dark brown (10YR 4/3) moist; moderate medium subangular blocky structure parting to moderate fine granular; hard, firm, sticky and plastic; common very fine and few fine roots; few very fine and fine discontinuous pores; strongly effervescent, calcium carbonate disseminated; 5 percent gravel; moderately alkaline (pH 8.1); abrupt smooth boundary. (9 to 13 inches thick)

Bk1--11 to 17 inches; pale brown (10YR 6/3) sandy loam, brown (10YR 5/3) moist; weak medium subangular blocky structure; hard, firm, slightly sticky and plastic; common very fine and fine roots; few very fine and fine discontinuous pores; few faint clay films lining pores; strongly effervescent, calcium carbonate disseminated and as common threads and soft masses; 15 percent calcium carbonate equivalent; 5 percent gravel; moderately alkaline (pH 8.3); clear smooth boundary.

Bk2--17 to 22 inches; pale brown (10YR 6/3) gravelly sandy loam, brown (10YR 5/3) moist; massive; hard, firm, sticky and slightly plastic; common very fine and fine roots; few very fine and fine discontinuous pores; strongly effervescent; calcium carbonate disseminated and as pendants on rock fragments; 15 percent calcium carbonate equivalent; 25 percent gravel; moderately alkaline (pH 8.3); clear smooth boundary.

Bk3--22 to 35 inches; white (10YR 8/2) very gravelly sandy loam, very pale brown (10YR 7/4) moist; massive; slightly hard, very friable, nonsticky and nonplastic; violently effervescent; calcium carbonate disseminated and as pendants on rock fragments; 35 percent calcium carbonate equivalent; 30 percent gravel and 10 percent cobbles; moderately alkaline (pH 8.3); diffuse irregular boundary.

Bk4--35 to 60 inches; very pale brown (10YR 7/3) very gravelly sand, light yellowish brown (10YR 6/4) moist; massive; soft, very friable, nonsticky and nonplastic; strongly effervescent; calcium carbonate disseminated and as coatings on rock fragments; 11 percent calcium carbonate equivalent; 30 percent gravel and 10 percent cobbles; moderately alkaline (pH 8.2).

TYPE LOCATION: Platte County, Wyoming; 3 miles west of Wheatland, about 1600 feet north and 1650 feet east of the southwest corner of Section 21, T.24N., R.68W. Hightower Quadrangle. 42 degrees 2 minutes 8 seconds north latitude and 105 degrees 0 minutes 58 seconds west longitude.

RANGE OF CHARACTERISTICS: Sweatbee soils are calcareous throughout with the depth to the calcic horizon ranging from 10 to 22 inches. Calcium carbonate equivalent of the calcic horizon ranges from 5 to 40 percent. The particle-size control section averages 15 to 35 percent rock fragments. Individual horizons may have up to 45 percent rock fragments. The soil temperature at a depth of 20 inches is 41 degrees F. for 175 to 195 days. The soil is dry in all parts of the moisture control section for at least 60 consecutive days during the 90 day period following the summer solstice. The average annual soil temperature 47 to 51 degrees F.

The A horizon has value of 5 or 6 and chroma of 3 or 4. Total rock fragments range from 0 to 10 percent gravel.Texture is sandy clay loam or fine sandy loam.

The Bk horizon has value of 6 through 8 dry, 5 through 7 moist, and chroma of 1 through 4. Textures are sandy loam, fine sandy loam, gravelly sandy loam, very-gravelly loamy sand, very-gravelly sandy loam and very-gravelly sand. The calcium carbonate equivalent ranges from 5 to 40 percent. Total rock fragments average from 15 to 35 percent in the particle size control section. Total rock fragments average greater than 35 percent below the control section.

COMPETING SERIES: These are Thumbrock, Chugcity (T), Chupadera (T), Milok, Mivida, Sazi, and Snilloc (T) soils. Thumbrock, Chugcity, Chupadera, and Sazi soils have bedrock between 20 and 40 inches. Milok and Mivida soils have hue redder than 10YR. Snilloc soils have less than 15 percent coarse fragments in the particle-size control section.

GEOGRAPHIC SETTING: Sweatbee soils are on terraces. They formed in mixed alluvium and eolian materials. Slopes are 0 to 20 percent. Elevations are 4600 to 5500 feet. The average annual precipitation is 12 to 15 inches and the average annual air temperature is 46 to 48 degrees F. The frost-free season is 110 to 130 days.

GEOGRAPHICALLY ASSOCIATED SOILS: These are the Clapper, Curabith, Greenhope (T), Hiland, Larimer, Lavar (T), Numa and the competing Chugcity soils. Clapper soils have a loamy-skeletal particle-size control section. Curabith and Greenhope soils have a mollic epipedon. Hiland, Larimer, and Lavar soils have argillic horizons. Numa soils have a fine-loamy particle-size control section.

DRAINAGE AND PERMEABILITY: Well drained; medium runoff; moderately rapid permeability.

USE AND VEGETATION: These soils are utilized for grazing by domestic livestock, wildlife habitat,and dry and irrigated cropland. The native vegetation is western wheatgrass, blue grama, prairie junegrass, milkvetch, and scarlet globemallow. Wheat, oats, corn, beans, alfalfa, and sugar beets are the primary crops under cultivation.

DISTRIBUTION AND EXTENT: Sweatbee soils occur in eastern Wyoming. The series is of limited extent.

SOIL SURVEY REGIONAL OFFICE (SSRO) RESPONSIBLE: Salina, Kansas.

SERIES PROPOSED: Platte County, Wyoming. 1987.

REMARKS: Diagnostic horizons and features recognized in this pedon are:

Ochric epipedon - 0 to 11 inches (Ap)

Calcic horizon - 11 to 60 inches (Bk1,Bk2,Bk3,Bk4)

MLRR - G

SIR - WY1012


National Cooperative Soil Survey
U.S.A.