LOCATION QUAINT MT
Established Series
Rev. DES-JAL-EMM
03/2014
QUAINT SERIES
The Quaint series consists of shallow, somewhat excessively drained soils that formed in colluvium, slope alluvium and residuum derived from hard red sedimentary bedrock. These soils are on ridges, scarp slopes, plateaus and sideslopes of hills. Slopes are 2 to 55 percent. Mean annual precipitation is about 16 inches, and mean annual air temperature is about 40 degrees F.
TAXONOMIC CLASS: Loamy-skeletal, mixed, superactive, frigid Lithic Haplustepts
TYPICAL PEDON: Quaint channery loam, in rangeland (colors are for dry soil unless otherwise noted).
A--0 to 5 inches; weak red (2.5YR 4/2) channery loam, dusky red (2.5YR 3/2) moist; moderate medium granular structure; slightly hard, very friable, nonsticky and nonplastic; many very fine and fine roots; common very fine and fine pores; 25 percent channers; slightly alkaline (pH 7.8); clear wavy boundary. (3 to 7 inches thick)
Bk1--5 to 11 inches; weak red (10R 5/3) very channery loam, dark reddish brown (2.5YR 3/4) moist; weak coarse prismatic structure parting to moderate medium subangular blocky; slightly hard, very friable, nonsticky and nonplastic; many fine and very fine roots; common very fine and fine pores; 5 percent flagstones, 35 percent channers; disseminated lime; few faint lime coatings on fragments; strongly effervescent; moderately alkaline (pH 8.3); clear wavy boundary.
Bk2--11 to 14 inches; weak red (10R 5/3) very channery loam, dark reddish brown (2.5YR 3/4) moist; moderate medium subangular blocky structure; slightly hard, very friable, nonsticky and nonplastic; common very fine and fine roots; common very fine and fine pores; 5 percent flagstones, 55 percent channers; disseminated lime; common distinct lime coatings on undersides of fragments; strongly effervescent; moderately alkaline (pH 8.3); clear smooth boundary. (Combined thickness of Bk horizons is 7 to 14 inches)
R--14 inches; weak red (10R 5/3) fractured hard shale.
TYPE LOCATION: Jefferson County, Montana; 300 feet north and 1,200 feet west of the SE corner of sec. 13, T. 4 N., R. 2 W.
RANGE IN CHARACTERISTICS:
Soil temperature - 38 to 44 degrees F.
Moisture control section - between 4 and 12 inches.
Depth to the Bk horizon - 3 to 7 inches.
Depth to bedrock - 10 to 20 inches.
Surface stones and boulders - 0 to 3 percent.
The surface horizons when mixed to a depth of 7 inches does not meet the requirements for a mollic epipedon.
A horizon
Hue: 2.5YR, 5YR, or 7.5YR
Value: 4, 5, or 6 dry
Chroma: 2 or 3, dry or moist
Texture - loam or sandy loam
Clay content: 15 to 27 percent
Rock fragments: 5 to 45 percent--0 to 15 percent flagstones and 5 to 40 percent channers
Reaction: pH 6.6 to 7.8
Bk horizons
Hue: 10R, 2.5YR, or 7.5YR
Value: 5 or 6 dry; 3, 4, or 5 moist
Chroma: 3 or 4, dry or moist
Texture - loam or sandy loam
Clay content: 18 to 27 percent
Rock fragments: 35 to 60 percent--5 to 10 percent flagstones and 30 to 55 percent channers
Calcium carbonate equivalent: 3 to 10 percent
Reaction: pH 7.4 to 8.4
COMPETING SERIES:
Cinnadale (NM) - does not have horizons of secondary carbonate accumulation
Cypher (NM) - does not have horizons of secondary carbonate accumulation
Devilfence (MT) - has hues of 10YR or yellower; formed in residuum from hard brown shale.
Deville (MT) - does not have horizon of secondary carbonate accumulation; has hues of 10YR or yellower.
Kounter (MT) - has less than 18 percent clay in the particle-size control section; has a paralithic contact above the lithic contact.
Roegulch (MT) - does not have a horizon of secondary carbonate accumulation; has a paralithic contact over the lithic contact.
Shaboom (MT) - does not have horizons of secondary carbonate accumulation
Sharrott (MT) - does not have horizons of secondary carbonate accumulation
GEOGRAPHIC SETTING:
Landform - ridges, scarp slopes, plateaus and sideslopes of hills.
Elevation - 4,600 to 6,000 feet.
Slope - 2 to 45 percent.
Parent material - colluvium, slope alluvium and residuum derived from hard red sedimentary bedrock.
Climate - long, cold winter; moist springs; warm summers.
Mean annual precipitation - 15 to 19 inches.
Mean annual air temperature - 36 to 42 degrees F.
Frost-free period - 70 to 105 days.
GEOGRAPHICALLY ASSOCIATED SOILS: None listed.
DRAINAGE AND PERMEABILITY: Somewhat excessively drained, moderately rapid permeability.
USE AND VEGETATION: Quaint soils are primarily used for rangeland. The potential native vegetation is mainly bluebunch wheatgrass, Idaho fescue, needleandthread, Western wheatgrass, lupine, big sagebrush, and rubber rabbitbrush.
DISTRIBUTION AND EXTENT: Quaint soils are of small extent in southwestern Montana. MLRA 43B.
MLRA SOIL SURVEY REGIONAL OFFICE (MO) RESPONSIBLE: Bozeman, Montana
SERIES ESTABLISHED: Jefferson County, Montana, 1998.
REMARKS: Diagnostic horizons and features recognized in this pedon are:
Ochric epipedon from the surface to 7 inches (mixed) (A, Bk1 horizons)
Cambic horizon from 5 to 11 inches (Bk1 horizon)
Particle-size control section from the surface to 14 inches (A, Bk1, Bk2 horizons)
Horizon of secondary calcium carbonate from 5 to 14 inches (Bk1, Bk2 horizons)
Lithic contact - hard red shale bedrock at 14 inches (R horizon).
Soil interpretation record: MT1563, MT3049.
Quaint soils have a frigid temperature regime and an ustic moisture regime.
National Cooperative Soil Survey
U.S.A.