LOCATION REVLING ID

Established Series
Rev. BLR-BDG-EMM
07/2013

REVLING SERIES

The Revling series consists of very deep, well drained soils formed in alluvium and lacustrine sediments with a thick volcanic ash mantle. They are on hills and ridges on plateaus and structural benches and footslopes on mountains. Permeability is slow and slopes range from 5 to 45 percent. The average annual precipitation is about 37 inches and the average annual temperature is about 42 degrees F.

TAXONOMIC CLASS: Ashy over loamy, amorphic over mixed, active, frigid Alfic Udivitrands

TYPICAL PEDON: Revling ashy loam, forested, on a 25 percent slope at 3,280 feet elevation. Aspect is south. When described on July 21, 1993 the soil was moist to 19 inches and dry below. (Colors are for dry soil unless otherwise noted).

Oi--0 to 1 inch; leaves, needles, twigs, and moss.

Oe--1 to 2 inches; decomposed leaves, needles, twigs, and moss. (O horizons 0 to 4 inches thick)

A--2 to 7 inches; yellowish brown (10YR 5/4) ashy silt loam, dark yellowish brown (10YR 3/4) moist; weak very fine and fine granular structure; soft, very friable, nonsticky and nonplastic; many very fine and fine, few coarse roots; many very fine irregular pores; 3 percent fine rounded iron-manganese concretions; 1 percent fine mica flakes; 1 percent fine gravel; neutral (pH 7.2); abrupt wavy boundary. (1 to 5 inches thick).

Bw1--7 to 12 inches; light yellowish brown (10YR 6/4) ashy silt loam, dark brown (7.5YR 3/4) moist; weak fine and medium subangular blocky structure parting to weak very fine and fine granular; soft, very friable, nonsticky and nonplastic; many very fine and fine, common medium and coarse roots; many very fine and fine irregular pores; 3 percent fine rounded iron-manganese concretions; 1 percent fine mica flakes; few fine charcoal pieces; neutral (pH 7.0); clear wavy boundary.

Bw2--12 to 21 inches; light brown (7.5YR 6/4) ashy loam, brown (7.5YR 4/4) moist; weak fine and medium subangular blocky structure parting to very fine and fine granular; soft, very friable, nonsticky and nonplastic; many very fine and fine, common coarse roots; many very fine and fine irregular pores; 3 percent fine rounded iron-manganese concretions; 1 percent fine mica flakes; few fine charcoal pieces; neutral (pH 6.9); abrupt wavy boundary. (Bw horizons 7 to 16 inches thick).

2Bt--21 to 35 inches; light brown (7.5YR 6/3) sandy clay loam, dark brown (7.5YR 3/4) moist; moderate coarse subangular blocky structure; slightly hard, firm, slightly sticky and slightly plastic; common fine and medium, and few coarse roots located on faces of peds, common very fine roots located throughout; common very fine and fine irregular, few medium tubular pores; common faint clay skins on faces of peds and pores; 10 percent thin angular iron cemented fragments; 1 percent fine mica flakes; 10 percent fine rounded quartzite gravel; slightly acid (pH 6.2); abrupt wavy boundary. (4 to 34 inches thick).

3Btb1--35 to 50 inches; light brown (7.5YR 6/4) and very pale brown (10YR 7/4) sandy clay, yellowish brown (10YR 5/6) and light yellowish brown (10YR 6/4) moist; moderate medium and coarse prismatic structure; hard, firm, moderately sticky and moderately plastic; common medium and coarse roots located on faces of peds, few very fine roots throughout; common very fine and fine tubular pores; common yellowish brown (10YR 5/4) prominent clay skins on faces of peds; 2 percent fine mica flakes; strongly acid (pH 5.4); clear smooth boundary.

3Btb2--50 to 73 inches; brownish yellow (10YR 6/6) and light gray (10YR 7/2) sandy clay loam, yellowish brown (10YR 5/6) moist; moderate medium and coarse prismatic structure; hard, firm, moderately sticky and moderately plastic; few very fine and fine flattened roots located on faces of peds; few very fine tubular pores; many yellowish brown (10YR 5/4) and strong brown (7.5YR 5/6) prominent clay skins; 3 percent fine mica flakes; very strongly acid (pH 5.0); abrupt wavy boundary. (3Btb1 and 3Btb2 horizons 23 to 51 inches thick).

3Btb3--73 to 86 inches; brownish yellow (10YR 6/6) and very pale brown (10YR 7/4) loam, light yellowish brown (10YR 6/4) and yellowish brown (10YR 5/6) moist; moderate medium and coarse subangular blocky structure; hard, firm, moderately sticky and moderately plastic; few very fine irregular pores; many grayish brown (10YR 5/2) and light brownish gray (10YR 6/2) prominent clay skins; 3 percent fine mica flakes; very strongly acid (pH 5.0).

TYPE LOCATION: Clearwater County, Idaho; about 4 miles east of Grangemont, Idaho; about 1,250 feet south and 1,500 feet east of the northwest corner of sec. 22, T. 37 N., R. 4 E.; Latitude - 46 degrees, 32 minutes, 21 seconds North; Longitude - 115 degrees, 56 minutes, 30 seconds West. USGS Whiskey Butte Quadrangle.

RANGE IN CHARACTERISTICS:

Average annual soil temperature - 39 to 45 degrees F.
Frigid temperature regime
Soil moisture control section - usually moist year-round and not dry for 45 consecutive days between June and October
Udic moisture regime

Thickness of volcanic ash mantle - 14 to 20 inches
Volcanic glass content - 15 to 50 percent
Acid-oxalate extractable Al plus 1/2 Fe - 1.3 to 2.7 percent
Phosphate retention - 55 to 95 percent
15-bar water retention on air dried samples - 8 to 12 percent

A horizon
Hue - 5YR to 10YR moist
Value - 4 or 5 dry and 2 to 3 moist
Chroma - 3 or 4 dry and 2 to 4 moist
Texture - ashy silt loam or ashy loam
Clay content - 8 to 16 percent
Rock fragments - 0 to 3 percent gravel
Reaction - strongly acid to neutral
Bulk density - 0.65 to 0.90 g/cc

Bw horizons
Hue - 7.5YR or 10YR dry, 5YR to 10YR moist
Value - 5 or 6 dry and 3 or 4 moist
Chroma - 3 to 6 dry, 4 to 6 moist
Texture - ashy silt loam or loam
Clay content - 8 to 18 percent
Rock fragments - 0 to 5 percent gravel
Reaction - strongly acid to neutral
Bulk density - 0.65 to 1.00 g/cc

2Bt horizon
Hue - 7.5YR or 10YR dry, 2.5YR to 10YR moist
Value - 5 to 8 dry and 3 to 6 moist
Chroma - 2 to 6 dry, 2 to 8 moist
Textures - silt loam, loam, sandy clay loam, clay loam, silty clay loam or sandy loam
Clay content - 15 to 35 percent
Rock fragments - 0 to 30 percent gravel, 0 to 15 percent cobbles, 0 to 30 percent total fragments
Reaction - strongly acid to neutral

3Btb horizons
Hue - 5YR to 10YR dry or moist
Value - 5 to 8 dry and 4 to 8 moist
Chroma - 2 to 8 dry or moist
Textures - loam, silty clay loam, clay loam, silt loam, sandy loam, sandy clay loam, very fine sandy loam
Clay content - 14 to 50 percent
Rock fragments - 0 to 30 percent gravel, 0 to 10 percent cobbles, 0 to 30 percent total fragments
Reaction - extremely acid to moderately acid

3BC and 3C horizons (when present)
Hue - 7.5YR or 10YR dry, 2.5Y to 5YR moist
Value - 5 to 8 dry, 5 to 7 moist
Chroma - 1 to 6 dry, 2 to 8 moist
Texture - loam, silt loam, sandy clay loam, silty clay loam, clay loam, sandy loam, or loamy coarse sand
Clay content - 18 to 40 percent
Rock fragments - 0 to 40 percent gravel, 0 to 10 percent cobbles, 0 to 40 percent total fragments
Reaction - extremely acid to moderately acid

COMPETING SERIES:
Bargamin - have less than 35 percent clay in the 3btb and do not have mica in the substratum
Berray - have horizons containing lamellae and do not have mica in the substratum
Hubub - do not have a 3Bt horizon

GEOGRAPHIC SETTING: Revling soils are on hills and ridges on plateaus and structural benches and footslopes on mountains at elevations of 2,800 to 3,550 feet. Slopes range from 5 to 45 percent. These soils are formed in alluvium and lacustrine sediments with a thick mantle of volcanic ash. The average annual air temperature is 38 to 44 degrees F. The average annual precipitation is 35 to 55 inches. The frost free season is 50 to 110 days.

GEOGRAPHICALLY ASSOCIATED SOILS: These are the Grangemont, Jaype, Kauder, and Statemeadow series. Grangemont soils are on plateaus and are fine-silty. Jaype soils are on plateaus and have a thin ash mantle. Kauder soils are on plateaus and have a fragipan. Statemeadow soils are on plateaus and have a highly mixed ash mantle.

DRAINAGE AND PERMEABILITY: well drained; medium runoff; slow permeability.

USE AND VEGETATION: These soils are used primarily for timber production, livestock grazing, wildlife habitat and watershed. The natural vegetation is mainly western redcedar, grand fir, Douglas fir, western larch and western white pine with an understory of queencup beadlilly, wild ginger, goldthread, oneleaf foamflower, longtube twinflower and Utah honeysuckle.

DISTRIBUTION AND EXTENT: North central Idaho, Revling soils are not extensive. MLRA 43A.

MLRA SOIL SURVEY REGIONAL OFFICE (MO) RESPONSIBLE: Bozeman, Montana

SERIES ESTABLISHED: Clearwater County, Idaho, 2003.

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

Ochric epipedon - The zone from 0 to 7 inches (Oi, Oe, and A horizon).

Cambic horizon - The zone from 7 to 21 inches (Bw1 and Bw2 horizons).

Volcanic ash cap - The zone from 2 to 21 inches (A and Bw horizons).

Argillic horizon - The zone from 21 to 35 inches (Bt horizon).

Particle size control section - The zone from 2 to 42 inches (A, Bw1, Bw2, 2Bt, and part of the 3Btb1 horizons).

The ranges of values listed under the Range In Characteristics for the soil properties Bulk Density, Volcanic glass content, Acid-oxalate Al+1/2 Fe, Phosphate retention and 15-bar water retention are estimates only.

National Cooperative Soil Survey
U.S.A.