LOCATION WAGONTOWN IDEstablished Series
TAXONOMIC CLASS: Sandy-skeletal, mixed, frigid Typic Haploxerepts
TYPICAL PEDON: Wagontown coarse sandy loam - forested. (Colors are for dry soil unless otherwise noted.)
0i--0 to 1 inch; Douglas-fir needles and forest litter.
A--1 to 7 inches; pale brown (10YR 6/3) gravelly coarse sandy loam, very dark grayish brown (10YR 3/2) moist; weak very fine granular structure; soft, very friable; many very fine and fine roots; 30 percent pebbles; slightly acid; clear wavy boundary.
Bw--7 to 19 inches; light yellowish brown (10YR 6/4) very gravelly coarse sandy loam, brown (10YR 4/3) moist; weak very fine granular structure; soft, very friable; common very fine and fine roots; 30 percent pebbles, 10 percent cobbles; slightly acid; gradual wavy boundary.
C--19 to 42 inches; light yellowish brown (10YR 6/4) very cobbly loamy sand, brown (10YR 4/3) moist; massive; loose, very friable; common medium and coarse roots; 35 percent pebbles, 30 percent cobbles; slightly acid; abrupt wavy boundary.
R--42 inches; hard fractured granodiorite.
TYPE LOCATION: Elmore County, Idaho; 300 feet south and 400 feet west of northeast corner, section 18, T.2N., R.10E.
RANGE IN CHARACTERISTICS:
Depth to gravelly coarse sand - 10 to 20 inches
Average annual soil temperature - less than 47 degrees F
Usually moist but dry in all parts for 60 to 90 consecutive days between depths of 12 and 35 inches.
Reaction - neutral to slightly acid
Particle size control section-clay content - less than 18 percent in the upper one-fourth
Rock fragments - more than 35 percent
A horizon
Value - 5 or 6 dry, 3 or 4 moist
Chroma - 2 through 4.
B horizon
Value - 5 or 6 dry, 3 or 4 moist
Chroma - 2 through 4
Texture - COSL, GR-COSL, GRV-COSL, GR-SL
Rock fragment content - 35 to 55 percent
C horizon
Value - 5 through 7 dry, 4 or 5 moist
Chroma - 3 or 4
Texture - CB-LS, CBV-LS, GRV-LS, GRX-COS, GRV-COS
Rock fragment content - 35 to 65 percent
COMPETING SERIES: These are the Roadcat and Yellowbay series. These soils are very deep.
GEOGRAPHIC SETTING: Wagontown soils are on mountain slopes at elevations of 4,500 to 6,500 feet. They formed in alluvium and colluvium from granitic rocks. Slopes range from 35 to 70 percent. Average annual temperature is 42 to 45 degrees F; average annual precipitation ranges from 17 to 28 inches; and the frost-free season is 60 to 90 days.
GEOGRAPHICALLY ASSOCIATED SOILS: These are the Broad Canyon, Coski, Grousecreek, Quartzburg, and Switchback soils. Broad Canyon, Coski, and Grousecreek soils have Mollic epipedons and occur on north and east facing slopes. Quartzburg and Switchback soils have bedrock between depths of 20 and 40 inches and occur on south and west facing slopes.
DRAINAGE AND PERMEABILITY: Somewhat excessively drained; slow runoff; moderately rapid permeability to the gravelly sand layer and very rapid permeability below.
USE AND VEGETATION: Grazed woodland. Native vegetation is Ponderosa pine, Douglas-Fir, mountain snowberry, elksedge, and ceanothus.
DISTRIBUTION AND EXTENT: The southern part of the Idaho Batholith. Wagontown series is of moderate extent.
MLRA SOIL SURVEY REGIONAL OFFICE (MO) RESPONSIBLE: Bozeman, Montana
SERIES ESTABLISHED: Elmore County Area, Idaho, 1986.
REMARKS: Name is from a nearby creek. Diagnostic horizons and features recognized in this pedon are:
Ochric epipedon - the zone from 0 to 7 inches and a cambic horizon at 7 to 19 inches.
Particle-size control section - the zone from 10 to 40 inches.