LOCATION HICKEY WY+UTEstablished Series
TAXONOMIC CLASS: Fine-loamy, mixed, superactive, frigid Ustic Calciargids
TYPICAL PEDON: Hickey gravelly sandy clay loam on a southeast facing 4 percent slope under native range at about 8,140 feet elevation. (Colors are for dry soil unless otherwise stated)
A1--0 to 2 inches; reddish brown (5YR 5/3) gravelly sandy clay loam, dark reddish brown (5YR 3/3) moist; weak coarse platy structure parting to weak fine granular; soft, friable, moderately sticky and moderately plastic; 20 percent gravel, 5 percent cobbles; slightly alkaline; (pH 7.4) abrupt wavy boundary. (1 to 5 inches thick)
A2--2 to 4 inches; reddish brown (5YR 5/3) gravelly clay loam, dark reddish brown (5YR 3/3) moist; moderate very fine granular structure; soft, friable, moderately sticky and moderately plastic; many very fine roots; many very fine irregular pores; 10 percent gravel, 5 percent cobbles and stones; slightly alkaline (pH 7.4); abrupt wavy boundary. (1 to 5 inches thick)
Bt--4 to 8 inches; reddish brown (5YR 4/3) clay loam, dark reddish brown (5YR 3/4) moist; moderate coarse and medium subangular blocky structure parting to moderate very fine subangular blocky; slightly hard, friable, very sticky and moderately plastic; common very fine and fine roots; common very fine tubular pores; 10 percent gravel and cobbles; slightly alkaline (pH 7.4); clear wavy boundary. (4 to 14 inches thick)
Btk--8 to 30 inches; brown (7.5YR 5/4) clay loam, brown (7.5YR 4/4) moist; weak medium and fine subangular blocky structure; slightly hard friable, moderately sticky and moderately plastic; few very fine and fine roots; common very fine tubular pores; strongly effervescent, 16 percent carbonates disseminated and as lighter colored seams, lenses and threads; 10 percent gravel and cobbles; slightly alkaline (pH 7.8); clear wavy boundary. (6 to 22 inches thick)
Bk--30 to 60 inches; brown (7.5YR 5/4) sandy clay loam, brown (7.5YR 4/4) moist; massive; soft, friable, moderately sticky and moderately plastic; very few roots; strongly effervescent, 8 percent carbonates disseminated; 10 percent gravel and cobbles; slightly alkaline (pH 7.8).
TYPE LOCATION: Uinta County, Wyoming, about 4 miles southwest of Lonetree; about 100 feet south, southeast of west 1/4 corner Section 13, T12N, R114W; Lonetree USGS quad; lat. 41 degrees 01 minutes 07 seconds N. and long. 110 degrees 13 minutes 15 seconds W., NAD 83.
RANGE IN CHARACTERISTICS:
Mean annual soil temperature: 42 to 46 degrees F.
Mean summer soil temperature: 57 to 62 degrees F.
Depth to secondary carbonates: 6 to 10 inches
Coarse fragments range from 0 to 35 percent throughout the soil to a depth of 40 inches or more.
A horizon
Hue: 5YR through 10YR
Value: 4 or 5 dry
Chroma: 2 through 4
Texture of the matrix is sandy loam, loam, or sandy clay loam.
Bt horizon
Hue: 5YR or 7.5YR
Value: 3 or 4 dry and moist
Chroma: 3 or 4
Texture of the matrix is loam, clay loam or sandy clay loam
Clay content: 25 to 35 percent
Content of fine sand or coarser: more than 35 percent
Rock fragment content: 5 to 20 percent, dominantly gravel
Btk horizon
Hue: 5YR or 7.5YR
Value: 5 through 7 dry, 4 or 5 moist
Chroma: 3 or 4
Texture of the matrix is clay loam or sandy clay loam
Clay content: 20 to 35 percent
Content of fine sand or coarser: more than 35 percent
Calcium carbonate content: 15 to 30 percent
Reaction: slightly alkaline or moderately alkaline.
Bk horizon
Hue: 5YR or 7.5YR
Value: 5 or 6 dry, 4 or 5 moist
Chroma: 3 or 4
Texture of the matrix is clay loam or sandy clay loam.
Reaction: slightly alkaline or moderately alkaline.
COMPETING SERIES: These are the
Alogia,
Anchutz,
Antonito,
Cushool,
Cutback,
Fluetsch,
Fonce,
Grubrob,
Rock River,
Stunner, and
Wycolo series.
Rock River soils do not have a calcic horizon.
Alogia soils contain horizons with gypsum accumulation.
Anchutz soils have strongly alkaline or very strongly alkaline reactions.
Antonito and Grubrob soils have a lithic content at 20 to 40 inches.
Cushool, Cutback, and Wycolo soils have a paralithic contact at 20 to 40 inches.
Fluetsch soils have a cryic soil temperature regime.
Fonce soils have soil temperatures of 44 to 47 degrees F. and have less than 27 percent clay in the Bt horizons.
Stunner soils contain less than 35 percent fine or coarser sands.
GEOGRAPHIC SETTING: Hickey soils are on undulating and rolling to moderately steep glacial moraines. Slopes are 0 to 40 percent. Elevation is 7,500 to 8,500 feet. The average annual precipitation is 10 to 15 inches with slight highs in March through June. The average annual air temperature is 36 to 42 degrees F. The frost-free season is estimated as 50 to 80 days.
GEOGRAPHICALLY ASSOCIATED SOILS: These are Luhon and Evanston series. The Luhon soils do not have an argillic horizon, Evanston soils have a mollic epipedon.
DRAINAGE AND PERMEABILITY: Well drained; low to high runoff; moderately permeable.
USE AND VEGETATION: Rangeland and wildlife habitat. A few minor areas have been irrigated for hayland. Native vegetation is big sagebrush, black sagebrush, bluebunch wheatgrass, junegrass, Idaho fescue, rabbitbrush and phlox.
DISTRIBUTION AND EXTENT: The footslopes of the Uinta Mountains in Uinta County, Wyoming and Summit County, Utah. MLRA 34A, 47. The series is moderate extent.
MLRA SOIL SURVEY REGIONAL OFFICE (MO) RESPONSIBLE: Bozeman, Montana
SERIES ESTABLISHED: Henrys Fork soil survey area, Utah and Wyoming, 1990. The series name is from Hickey Mountain.
REMARKS: Diagnostic horizons and features recognized in this pedon are:
Ochric epipedon - from 0 to 4 inches thick (A1 and A2 horizons)
Argillic horizon - from 4 to 30 inches (Bt and Btk horizons)
Calcic horizon - from 8 to 30 inches (Btk horizon)
Particle-size control section - The zone from 4 to 24 inches (upper 20 inches of argillic horizon)
Series control section - The zone from 0 to 60 inches.
The temperature regime is estimated from data available in vicinity. The moisture regime is interpolated from 2 year data in the immediate area and longer records from other locations in the vicinity and estimated from the vegetation. (Note during 03/2007 revision: . As originally written, the mean summer temperature crossed from frigid to cryic. The temperature regime is not clear. The air temperatures, elevations, and associated soils suggest this series is more appropriately in a cryic regime. Vegetation and precipitation suggest this series is in an ustic regime rather than aridic; map unit descriptions range as high as 18 inches of precipitation. The climate regimes of this series need further study.)
The classification of the Hickey series when established was fine-loamy, mixed, frigid Borollic Haplargids.
Taxonomic version: Classified according to Keys to Soil Taxonomy, Tenth Edition, 2006.