LOCATION FOXLANE IDEstablished Series
TAXONOMIC CLASS: Sandy-skeletal, mixed, mesic Entic Ultic Haploxerolls
TYPICAL PEDON: Foxlane gravelly fine sandy loam, forested -- on a nearly level flood-plain step at 3,040 feet elevation. When described on September 22, 1997, the soil was dry to 44 inches and moist below. (Colors are for air-dry soil unless otherwise noted.)
Oi-- 0 to 1 inch; slightly decomposed pine needles and litter.
A1--1 to 4 inches; grayish brown (10YR 5/2) gravelly fine sandy loam, very dark grayish brown (10YR 3/2) moist; moderate coarse platy structure parting to weak fine granular; soft, very friable, slightly sticky and slightly plastic; common very fine and fine, few medium and coarse roots; many very fine and fine irregular pores; 20 percent gravel; slightly acid (pH 6.4); clear smooth boundary.
A2--4 to 10 inches; brown (10YR 5/3) gravelly fine sandy loam, dark brown (10YR 3/3) moist; weak fine granular structure; soft, very friable, slightly sticky and nonplastic; common very fine and fine, few medium and coarse roots; many very fine and fine irregular pores; 20 percent gravel; moderately acid (pH 6.0); clear smooth boundary. (combined A horizon - 5 to 14 inches thick)
AC--10 to 13 inches; grayish brown (10YR 5/2) gravelly loamy fine sand, very dark grayish brown (10YR 3/2) moist; single grain; loose, nonsticky and nonplastic; common very fine and fine, few medium and coarse roots; many very fine and fine irregular pores; 30 percent gravel; moderately acid (pH 5.8); clear smooth boundary. (3 to 16 inches thick)
2C1--13 to 47 inches; light gray (10YR 7/2) very gravelly coarse sand, grayish brown (10YR 5/2) moist; single grain; loose, nonsticky and nonplastic; few very fine, fine and medium roots; many medium and coarse irregular pores; 45 percent gravel, 10 percent cobbles; strongly acid (pH 5.4); gradual wavy boundary. (20 to 40 inches thick)
2C2--47 to 60 inches; very pale brown (10YR 8/2) extremely gravelly coarse sand, light brownish gray (10YR 6/2) moist; single grain; loose, nonsticky and nonplastic; many medium and coarse irregular pores; many distinct strong brown (7.5YR 5/6) dry and strong brown (7.5YR 4/6) moist iron concentrations in lenses 5 to 15 mm thick, common faint white (10YR 8/1) dry and gray (10YR 6/1) moist depletions: 60 percent gravel, 10 percent cobbles; strongly acid (pH 5.4).
TYPE LOCATION: Boise County, Idaho; about 3.5 miles southeast of Crouch; 900 feet north and 1,350 feet west of the southeast corner of section 27, T.9 N., R.4 E.; USGS Garden Valley Quadrangle; Latitude - 44 degrees, 04 minutes, 49 seconds N. and Longitude - 115 degrees, 57 minutes, 47 seconds W.; NAD 83.
RANGE IN CHARACTERISTICS:
Thickness of mollic epipedon - 10 to 14 inches
Depth to redoximorphic features - 40 to 60 inches
Depth to bedrock - 60 inches or more
Depth to sandy-skeletal material (2C horizon) - 10 to 21 inches
Base saturation - less than 75 percent in some part between 10 and 30 inches
Particle-size control section - 0 to 5 percent clay; 35 to 60 percent rock fragments
Moisture control section - dry 60 to 90 consecutive days following the summer solstice
Average annual soil temperature - 47 to 50 degrees F.
A horizon
Value - 4 or 5 dry, 2 or 3 moist
Chroma - 2 or 3 dry or moist
Clay content - 10 to 18 percent
Rock fragments - 15 to 35 percent gravel
Reaction - moderately acid or slightly acid
AC horizon
Value - 5 or 6 dry, 3 or 4 moist
Chroma - 2 or 3 dry or moist
Texture - SL, LFS or LS
Clay content - 5 to 14 percent
Rock fragments - 15 to 35 percent gravel
Reaction - moderately acid or slightly acid
2C1 horizon
Value - 6 or 7 dry, 4 or 5 moist
Chroma - 1 or 2 dry or moist
Texture - COS, S, LCOS or LS
Clay content - 0 to 8 percent
Rock fragments - 25 to 50 percent gravel, 5 to 15 percent cobbles and 35 to 60 percent total
Reaction - strongly acid or moderately acid
2C2 horizon
Value - 6 through 8 dry, 4 through 6 moist
Chroma - 1 or 2 dry or moist
Texture - S or COS
Clay content - 0 to 5 percent
Rock fragments - 50 to 70 percent gravel, 5 to 20 percent cobbles and 60 to 85 percent total
Redoximorphic features - common distinct or prominent iron concentrations; common or many faint depletions occurring in lenses
Reaction - strongly acid or moderately acid
COMPETING SERIES: These are the Garval, Shimo and Winthrop series. Garval and Shimo soils are 20 to 40 inches deep to bedrock and excessively drained. Winthrop soils are dry for 90 to 105 consecutive days, do not have O horizons or a seasonal high water table with accompanying redoximorphic concentrations and depletions at 40 to 60 inches.
GEOGRAPHIC SETTING: Foxlane soils are on flood-plain steps of rivers and streams at elevations of 2,950 to 3,700 feet. Slopes range from 0 to 4 percent. These soils formed in alluvium from igneous rocks (dominantly granodiorite) and fine pyroclastic materials. The average annual precipitation is 20 to 26 inches. The average annual temperature is 45 to 48 degrees F. The frost-free period is 90 to 120 days.
GEOGRAPHICALLY ASSOCIATED SOILS: These are the Crossbow, Pay and Ralsen soils. Crossbow soils are coarse-loamy and are somewhat poorly drained. Pay soils are sandy, poorly drained and do not have mollic epipedons. Ralsen soils are coarse-loamy and poorly drained. These soils occur on the adjacent lower flood-plain steps.
DRAINAGE AND PERMEABILITY: Moderately well drained with a seasonal high water table at 40 to 60 inches below the surface during the months of April through June; very slow runoff; moderately rapid permeability. Foxlane soils are subject to rare flooding for brief periods in December through June.
USE AND VEGETATION: Foxlane soils are used mainly for timber production and wildlife habitat. Native vegetation is ponderosa pine, common snowberry and Geyers (elk) sedge. Some areas are used for homesites or recreation.
DISTRIBUTION AND EXTENT: West-central Idaho. MLRA 43B. Foxlane soils are of small extent.
MLRA SOIL SURVEY REGIONAL OFFICE (MO) RESPONSIBLE: Portland, Oregon
SERIES ESTABLISHED: Boise County Area, Idaho, Parts of Ada and Boise Counties, 2005.
REMARKS: Diagnostic horizons and features recognized in this pedon:
Mollic epipedon - zone from the top of the mineral surface to 13 inches (A1, A2 and AC horizons)
Particle-size control section - zone from 11 to 41 inches
Redoximorphic features - zone from 47 to 60 inches (2C2 horizon)
Soil moisture regime - xeric
All depths related to diagnostic horizons and features listed in the range of characteristics are measured from the top of the first mineral horizon.