LOCATION HAYDENFORK UTEstablished Series
TAXONOMIC CLASS: Fine-loamy, mixed, superactive Typic Cryaquolls
TYPICAL PEDON: Haydenfork clay loam, in a concave position, 2 percent slope in a wet meadow at an elevation of 9,800 feet. (Colors are for moist soil unless otherwise noted.) When described on September 28, 1976, the soil was moist from the surface to ground water at 25 inches.
Oi--0 to 3 inches; slightly decomposed leaf litter.
A1--3 to 9 inches; black (10YR 2/1) clay loam, very dark grayish brown (10YR 3/2) dry; weak coarse subangular blocky structure parting to moderate fine and medium granular; very hard, firm, moderately sticky and moderately plastic; many very fine and fine roots; few very fine pores; moderately acid (pH 6.0); clear smooth boundary (4 to 10 inches thick).
A2--9 to 17 inches; black (10YR 2/1) clay loam, dark grayish brown (10YR 4/2) dry; moderate coarse prismatic structure parting to strong fine and medium subangular blocky; extremely hard, firm, moderately sticky and moderately plastic; common very fine and fine roots; few very fine pores; moderately acid (pH 6.0); clear smooth boundary (5 to 10 inches thick).
A3--17 to 21 inches; very dark grayish brown (10YR 3/2) clay loam, grayish brown (10YR 5/2) dry; moderate coarse subangular blocky structure; extremely hard, firm, moderately sticky and moderately plastic; few very fine and fine roots; few very fine pores; many medium prominent strong brown (7.5YR 5/6) iron concentrations; moderately acid (pH 6.0); abrupt smooth boundary (0 to 5 inches thick).
Bg--21 to 25 inches; gray (5Y 5/1) clay loam, light gray (5Y 7/2) dry; moderate coarse subangular blocky structure; extremely hard, firm, moderately sticky and moderately plastic; few very fine and fine roots; common very fine and fine pores; common medium prominent strong brown (7.5YR 5/8) iron concentrations; slightly acid (pH 6.1); abrupt smooth boundary (4 to 10 inches thick).
Cg--25 to 36 inches; brown (10YR 5/3) sandy clay loam, pale brown (10YR 6/3) dry; massive; very hard, friable, slightly sticky and slightly plastic; few very fine and fine roots; few very fine and fine pores; 10 percent gravel; coarse prominent gray (5Y 5/1) iron depletions; moderately acid (pH 6.0); abrupt smooth boundary (5 to 15 inches thick).
C1--36 to 55 inches; dark grayish brown (2.5Y 4/2) sandy clay loam, pale brown (10YR 6/3) dry; massive; very hard, friable, slightly sticky and slightly plastic; 10 percent gravel; moderately acid (pH 6.0); abrupt smooth boundary (10 to 20 inches thick).
C2--55 to 63 inches; dark grayish brown (2.5Y 4/2) gravelly sandy clay loam, pale brown (10YR 6/3) dry; massive; very hard, friable, slightly sticky and slightly plastic; 15 percent gravel; moderately acid (pH 6.0).
TYPE LOCATION: Summit County, Utah; about 1 1/2 miles west of Moslander Reservoir; located about 800 feet west and 2,800 feet south of the northeast corner of sec. 20, T. 3 N., R. 11 E.; Elizabeth Mountain, Utah-Wyoming USGS quad; lat. 40 degrees 56 minutes 24 seconds N. and long. 110 degrees 39 minutes 30 seconds W., NAD 1927
RANGE IN CHARACTERISTICS: (Depths given are measured from the mineral soil surface)
Soil moisture regime: aquic moisture regime.
Mean annual soil temperature: 37 to 42 degrees F.
Mean summer soil temperature: 50 to 55 degrees F.
Surface rock fragments: 0 to 15 percent gravel
Depth to redox concentrations: 10 to 20 inches
Depth to redox depletions: 10 to 20 inches
Thickness of the mollic horizon: 10 to 20 inches
Depth to endosaturation: 0 to 10 inches in April to June
Particle-size control section
Clay content: 18 to 35 percent
A horizon:
Hue: 10YR or 7.5YR
Value: 2 to 3 moist; 3 to 5 dry
Chroma: 1 or 2 moist and dry
Rock fragments: 0 to 15 percent
Reaction: Moderately acid or slightly acid
Bg and Cg horizon:
Hue: 5Y, 2.5Y, 10YR
Value: 4 or 5 moist; 6 or 7 dry
Chroma: 1 through 3 moist and dry
Texture: cl, scl, l
Rock fragments: 0 to 15 percent
Reaction: Moderately acid or slightly acid
C horizon:
Hue: 10YR or 2.5Y
Value: 4 or 5 moist; 5 or 6 dry
Chroma: 2 or 3 moist or dry
Texture: l, scl, gr-scl
Rock fragments: 5 to 35 percent gravel
Reaction: Moderately acid or slightly acid
COMPETING SERIES: These are the
Blackwell,
Furniss,
Foolhen and
Vensora series.
Blackwell: have stratified sandy material at 20 to 40 inches and have a mean annual soil temperature of 41 to 44 degrees
Foolhen: are slightly alkaline or moderately alkaline in the C horizon
Furniss: have sand and gravel below 40 inches and are slightly alkaline or moderately alkaline throughout
Vensora: have very gravelly 2C horizons and are neutral to slightly alkaline throughout
GEOGRAPHIC SETTING:
Parent material: Alluvium and glacial outwash derived from sandstone and quartzite.
Landform: kettles.
Slopes: 0 to 3 percent
Elevation: 8,100 to 10,800 feet
Mean annual air temperature: 35 to 40 degrees F.
Mean annual precipitation: 22 to 35 inches.
Wettest months: April through June.
Driest months: July through September.
Frost-free period: 20 to 60 days.
GEOGRAPHICALLY ASSOCIATED SOILS: These are the
Duchesne,
Hovarka and
Sessions series.
Duchesne: Well drained gravelly soils on glacial moraines
Hovarka: Soils in flood plains along major drainageways
Sessions: Fine textured soils on till plains
DRAINAGE AND PERMEABILITY: Very poorly drained, low runoff, moderately slow permeability. These soils are frequently ponded for brief periods during the months of April through June.
USE AND VEGETATION: The major uses are rangeland and wildlife habitat. Vegetation is sedges, redtop, meadow foxtail and clover.
DISTRIBUTION AND EXTENT: North central Utah. LRR E, MLRA 47. This series is of small extent.
MLRA SOIL SURVEY REGIONAL OFFICE (MO) RESPONSIBLE: Bozeman, Montana
SERIES ESTABLISHED: Summit County, Utah, 2000; Summit Area soil survey. The name is from Hayden Fork drainageway in Summit County.
REMARKS: Diagnostic horizons and features recognized in this pedon are:
Mollic epipedon: The zone from 3 to 21 inches. (A1, A2, and A3 horizons)
Aquic conditions (endosaturation): from 17 to 63 inches (A3, Bg, Cg, C1, and C2 horizons) at some time in most years. Inferred from redox features and from the observed saturation at 25 inches.
Keys to Soil Taxonomy: Eighth edition, 1998
ADDITIONAL DATA: