LOCATION SUTTLER IDEstablished Series
TAXONOMIC CLASS: Coarse-loamy, micaceous Lamellic Humicryepts
TYPICAL PEDON: Suttler loam, forested. (Colors are for dry soil unless otherwise noted).
Oi--0 to 2 inches; undecomposed and slightly decomposed needles, leaves, cones and twigs; moderately acid (pH 5.8). (0 to 2 inches thick)
Oe--2 to 3 inches; very dark brown (10YR 2/2) mated, moderately decomposed needles, leaves, cones, twigs and wood, black (10YR 2/1) moist, moderately acid (pH 5.8); abrupt wavy boundary. (0 to 1 inch thick)
A--3 to 7 inches; grayish brown (10YR 5/2) loam; very dark brown (10YR 2/2) moist; moderate thin platy structure parting to weak very fine and fine granular; slightly hard, very friable, slightly sticky and slightly plastic; many fine and common coarse roots; many very fine interstitial and common very fine tubular pores; 2 percent gravel; highly micaceous; strongly acid (pH 5.2); clear wavy boundary; (3 to 5 inches thick)
AB--7 to 12 inches; brown (10YR 5/3) loam, dark brown (10YR 3/3) moist; weak coarse and medium subangular blocky structure; hard, friable, slightly sticky and slightly plastic; many fine and few medium and coarse roots; common very fine tubular pores; 2 percent gravel; moderately micaceous; few uncoated silt grains; moderately acid (pH 5.8); gradual wavy boundary. (4 to 7 inches thick)
Bw1--12 to 29 inches; brown (10YR 5/3) loam, dark brown (10YR 3/3) moist; weak medium and coarse subangular blocky structure; hard, firm, slightly sticky and slightly plastic; few fine rots; common very fine and few fine tubular pores; 2 percent gravel; few thin clay films; few uncoated silt grains on faces of peds; moderately micaceous; strongly acid (pH 5.3); gradual wavy boundary. (12 to 40 inches thick)
Bw2--29 to 43 inches; brown (10YR 5/3) and light yellowish brown (2.5Y 6/3) fine sandy loam, dark brown (10YR 3/3) moist; weak coarse and medium subangular blocky structure; hard, firm, slightly sticky and slightly plastic; few fine roots; common very fine and few fine tubular pores; 5 percent channer, 5 percent gravel; few very thin horizontal clayey bands (lamellae); few thin clay films in channels; highly micaceous; very strongly acid (pH 4.7); gradual wavy boundary. (10 to 20 inches thick)
C--43 to 57 inches; light brownish gray (2.5Y 6/2) and light gray (2.5Y 7/2) gravelly fine sandy loam, dark grayish brown (2.5Y 4/2) and grayish brown (2.5Y 5/2) moist; common medium distinct yellowish brown (10YR 5/4) and light yellowish brown (10YR 6/4) stains and mottles that are yellowish brown (10YR 5/4) moist; weak thin platy structure; hard, firm, slightly sticky; few fine roots; few very fine tubular pores; 25 percent gravel, 10 percent channer; highly micaceous; very strongly acid (pH 4.7); gradual irregular boundary. (0 to 20 inches thick)
Cr--57 inches; weathered rock, mainly mica-schist; very strongly acid (pH 4.9).
TYPE LOCATION: Idaho County, Idaho; about 70 feet west of Green Creek Point Road and Lightning Creek Road, and 1,872 feet west of the southeast corner of sec. 14, T.30N., R.4E., on an 8 percent east-facing slopes.
RANGE IN CHARACTERISTICS:
Average annual soil temperature - 40 to 47 degrees F.
Average summer soil temperature without an O horizon - 50 to 59 degrees F.
Moisture - usually moist
Depth to paralithic contact - 40 to 60 or more inches
Umbric epipedon thickness - 10 to 30 inches
A horizon
Hue - 10YR or 7.5YR
Value - 4 or 5 dry, 2 or 3 moist
Chroma - 2 or 3
Gravel - 0 to 10 percent
Bw horizon
Hue - 10YR, 7.5YR, or 2.5Y
Value - 5 or 6 dry, 3 or 4 moist
Chroma - 2 through 4 moist or dry
Rock fragments - 1 to 35 percent
Clay bands - 2 to several, thin wavy horizontal
Base saturation - 40 to 60 percent
Fragipan - very weak and below 40 inches if present
COMPETING SERIES: These are Boze, Donnel, Gestrin, Josie, Longval, Rarick, and Weitas (T) series. Boze, Donnel, and Weitas soils lack clayey lamellae. Gestrin soils are moderately well drained and lack lamellae. Josie soils have less than 20 percent base saturation in the B horizon. Langval and Rarick soils have a lithic contact at 20 to 40 inches.
GEOGRAPHIC SETTING: The soils are in moderate to very steeply sloping mountainous areas. They formed in material weathered from gneiss, schist, granite, and other similar acidic bedrock. The surface layers may contain loess. The average annual precipitation is 26 to 36 inches. The frost-free period is 60 to 80 days. The elevation ranges from 2,500 to 5,200 feet.
GEOGRAPHICALLY ASSOCIATED SOILS: These are the Greencreek, Jughandle, Lochsa, Molly, and Nazaton soils. Greencreek soils have a fine-loamy argillic horizon. Jughandle soils have an ochric epipedon. Locsa soils have a mollic epipedon and have mesic temperature. Molly soils have volcanic ash in the surface layers. Nazaton soils are pachic.
DRAINAGE AND PERMEABILITY: Well drained; medium to very rapid runoff; moderate permeability.
USE AND VEGETATION: Mainly forest products. Dominant vegetation is grand fir, Douglas-fir, and lodgepole pine.
DISTRIBUTION AND EXTENT: West Central, Idaho. The soils are moderately extensive.
MLRA SOIL SURVEY REGIONAL OFFICE (MO) RESPONSIBLE: Bozeman, Montana
SERIES ESTABLISHED: Idaho County, Idaho, 1976.
REMARKS: Diagnostic horizons and features recognized in this pedon are:
Umbric epipedon - the zone from 3 to 29 inches (A, AB, and Bw1 horizons)
Cambic horizon - the zone from 29 to 43 inches (Bw2 horizon)
Lamellae -in the zone from 29 to 43 inches (Bw2 horizon)
Udic moisture regime
The 3/2008 description reflects a change in classification from Coarse-loamy, paramicaceous Lamellic Dystrocryepts to Coarse-loamy, paramicaceous Lamellic Humicryepts due to revision of the cryepts great groups and subgroups. The competing series section was not updated and should be reviewed after all the cryepts have been re-classified.
The mineralogy class was changed from paramicaceous to micaceous in 07/2010 by the National Soil Survey Center on request of the responsible MLRA regional office. The change was necessary based on the eleventh edition of the Keys to Soil Taxonomy, 2010.