LOCATION SIDLAKE ID
Established Series
Rev. MEJ/CLM
10/2011
SIDLAKE SERIES
The Sidlake Series consists of moderately deep to bedrock, well drained soils on basalt or rhyolite plains. They formed in eolian material over basalt or rhyolite bedrock. Slopes range from 1 to 30 percent. The mean annual precipitation is about 9 inches, and the mean annual temperature is about 51 degrees F.
TAXONOMIC CLASS: Fine-loamy, mixed, superactive, mesic Xeric Haplargids
TYPICAL PEDON: Sidlake fine sandy loam; on a 3 percent northwest-facing slope in rangeland at 4,220 feet elevation. When described on July 21, 1981, the profile was moist below 10 inches. (Colors are for dry soil unless otherwise noted.)
A1--0 to 3 inches; grayish brown (10YR 5/2) fine sandy loam, dark brown (10YR 3/3) moist; weak fine and medium granular structure; soft, very friable, nonsticky and slightly plastic; many very fine and fine roots; many very fine irregular pores; neutral (pH 7.2); clear wavy boundary. (2 to 8 inches thick)
A2--3 to 8 inches; yellowish brown (10YR 5/4) loam, dark yellowish brown (10YR 3/4) moist; weak fine and medium subangular blocky structure; soft, friable, slightly sticky and slightly plastic; many very fine and fine roots; many very fine tubular pores; neutral (pH 7.2); clear smooth boundary. (0 to 9 inches thick)
Bt1--8 to 18 inches; yellowish brown (10YR 5/4) sandy clay loam, dark yellowish brown (10YR 4/4) moist; moderate medium subangular blocky structure; slightly hard, friable, slightly sticky and slightly plastic; common very fine and fine roots; common very fine tubular pores; few clay bridges between sand grains; about 5 percent gravel; slightly alkaline (pH 7.4); gradual wavy boundary. (8 to 14 inches thick)
Bt2--18 to 24 inches; yellowish brown (10YR 5/4) loam, dark yellowish brown (10YR 4/4) moist; strong medium and coarse subangular blocky structure; hard, friable, slightly sticky and slightly plastic; few very fine and fine roots; common very fine tubular pores; common clay bridges between sand grains; about 5 percent gravel; slightly alkaline (pH 7.6); abrupt wavy boundary. (4 to 14 inches thick)
2R--24 inches; basalt bedrock - lime coated in depressional areas and in fractures.
TYPE LOCATION: Lincoln County, Idaho; about 2,280 feet south, 1,300 feet west of the northeast corner of section 6, T.6S., R.21E.
RANGE IN CHARACTERISTICS:
Depth to lithic contact - 20 to 40 inches
Mean annual soil temperature - 47 to 54 degrees F.
Reaction - neutral or slightly alkaline
A horizon
Value - 4 to 6 dry, 3 or 4 moist
Chroma - 2 through 4 dry or moist
Rock fragments - 0 to 10 percent
Bt horizons
Value - 4 through 6 dry, 3 through 5 moist
Chroma - 3 or 4 dry or moist
Rock fragments - 0 to 10 percent
Clay content - 20 to 32 percent clay
Texture - L, SCL, CL
Other features - Bk or Cr horizons are present in some pedons.
COMPETING SERIES: These are the
Abgese,
Ackelton (T),
Ackley,
Blacknest (T),
Colbar (T), Esha,
Eusbio(T),
Greenbrae,
Hardtrigger(T),
Harsan(T),
Hoosegow(T),
Lankbush,
Morfitt,
Paulville,
Sevy,
Shawave,
Stiles,
Turria,
Windypoint (T), and
Zane series. Abgese, Ackley, Blacknest, Esha, Greenbrae, Hardtrigger, Harsan, Hoosegow, Lankbush, Morfitt, Paulville, Sevy, Shawave, Turria, Windypoint, and Zane soils are more than 40 inches deep to a lithic contact. Ackelton soils are deep to a duripan. Colbar soils have 15 to 35 percent rock fragments in the control section. Eusbio and Stiles soils are moderately deep to a paralithic contact.
GEOGRAPHIC SETTING: Sidlake soils are on basalt or rhyolite plains and terraces. Slopes range from 1 to 30 percent. Elevation ranges from 3,200 to 4,600 feet. The soils formed in eolian material over basalt, latite, vitrophyre, or rhyolite. Some areas have a slight influence of material weathered from these rocks. The mean annual precipitation is about 8 to 11 inches, the mean annual air temperature is about 45 to 52 degrees F, and the frost free season is 100 to 140 days.
GEOGRAPHICALLY ASSOCIATED SOILS: These are the
Banbury (T),
Cottle,
Harsan,
Kecko,
Paulville,
Snowmore, and
Vining soils. Banbury and Cottle soils are 10 to 20 inches deep to bedrock. Harsan soils are deep. Kecko soils are deep and very deep, and lack argillic horizons. Snowmore soils are moderately deep to a duripan. Vining soils lack argillic horizon, and are in a coarse loamy family. These soils are on landscape positions similar to Sidlake soils.
DRAINAGE AND PERMEABILITY: Well drained; slow to medium runoff; and moderately slow permeability.
USE AND VEGETATION: Sidlake soils are used for rangeland. The natural vegetation is basin big sagebrush, Wyoming big sagebrush, bluebunch wheatgrass, and Thurber needlegrass.
DISTRIBUTION AND EXTENT: This series is of moderate extent in southern Idaho.
MLRA SOIL SURVEY REGIONAL OFFICE (MO) RESPONSIBLE: Portland, Oregon
SERIES ESTABLISHED: Elmore County Area, Idaho, 1986.
REMARKS: Diagnostic horizons and features recognized in this pedon are:
Ochric epipedon - the zone from 0 to 8 inches (A1 and A2 horizons)
Argillic horizon - the zone from 8 to 24 inches (Bt horizon)
Particle-size control section - the zone from 8 to 24 inches
Lithic contact - about 24 inches
National Cooperative Soil Survey
U.S.A.