LOCATION ZUFELT ID+WYEstablished Series
TAXONOMIC CLASS: Fine-loamy over sandy or sandy-skeletal, mixed, superactive, calcareous Calcic Cryaquolls
TYPICAL PEDON: Zufelt silt loam in a pasture on a 0 percent slope on a fan remnant at an elevation of 1826 meters. (Colors are for moist soil unless otherwise indicated.)
A1--0 to 18 cm; very dark gray (2.5Y 3/1) silt loam, gray (2.5Y 5/1) dry; weak medium and thin platy structure parting to weak fine granular; hard, friable, slightly sticky and slightly plastic; common fine and medium roots; common very fine tubular pores; 5 percent very fine gravel; few fine distinct brown (10YR 4/3) organic stains on surfaces along root channels, light yellowish brown (10YR 6/4) dry; slightly effervescent; slightly alkaline (pH 7.7); abrupt smooth boundary. (0 to 23 cm thick)
A2--18 to 36 cm; very dark gray (2.5Y 3/1) loam, gray (2.5Y 5/1) dry; weak medium and fine subangular blocky structure parting to weak very fine granular; hard, friable, slightly sticky and slightly plastic; common fine and medium roots; many very fine tubular pores; 5 percent very fine gravel; few fine distinct brown (10YR 4/3) organic stains on surfaces along root channels, light yellowish brown (10YR 6/4) dry; slightly effervescent; slightly alkaline (pH 7.6); clear smooth boundary. (10 to 43 cm thick)
Bkg1--36 to 56 cm; grayish brown (2.5Y 5/2) loam, light gray (2.5Y 7/1) dry; weak medium subangular blocky structure parting to weak thin and thick platy; hard, friable, slightly sticky and slightly plastic; common fine and few medium roots; many very fine tubular pores; many calcium carbonate masses and veins and few irregular indurated calcium carbonate nodules; medium distinct yellowish brown (10YR 5/6) dry iron masses; slightly effervescent; slightly alkaline (pH 7.7); clear smooth boundary. (15 to 38 cm thick)
Bkg2--56 to 74 cm; grayish brown (2.5Y 5/2) loam, light gray (2.5Y 7/2) dry; massive; hard, friable, slightly sticky and slightly plastic; many very fine tubular pores; many irregular calcium carbonate masses; few medium distinct dark yellowish brown (10YR 4/4) iron masses, light yellowish brown (10YR 6/4) dry; strongly effervescent; slightly alkaline (pH 7.7); clear smooth boundary. (0 to 18 cm thick)
Bkg3--74 to 84 cm; light brownish gray (2.5Y 6/2) loam, very pale brown (10YR 8/2) dry; massive; hard, friable, slightly sticky and slightly plastic; common coarse prominent yellowish brown (10YR 5/6) iron masses, light yellowish brown (10YR 6/4) dry; 10 percent gravel; strongly effervescent; moderately alkaline (pH 7.9); clear smooth boundary. (0 to 25 cm thick)
2Bk--84 to 94 cm; olive brown (2.5Y 4/3) gravelly sand, light yellowish brown (2.5Y 6/3) dry; single grain; calcium carbonate coats on bottoms of 50 percent of rock fragments; 20 percent gravel; slightly effervescent; moderately alkaline (pH 7.9); gradual wavy boundary. (0 to 15 cm thick)
2Cg--94 to 152 cm; grayish brown (2.5Y 5/2) very gravelly sand, light gray (2.5Y 7/2) dry; single grain; 40 percent gravel; very slightly effervescent; moderately alkaline (pH 7.9).
TYPE LOCATION: Teton County, Idaho; 30.5 meters south and 9 meters east of the northwest corner of the NE 1/4 section 30, T. 6 N., R. 45 E.; Tetonia USGS topographic quadrangle; lat. 43 degrees, 49 minutes, 28.9 seconds N. and long. 111 degrees, 11 minutes, 25.5 seconds W., NAD 83.
RANGE IN CHARACTERISTICS:
Mollic epipedon thickness: 18 to 43 cm
Depth to calcic horizon: 18 to 43 cm
Depth to redoximorphic features (iron concentrations/depletions): 0 to 43 cm
Control section total clay: 20 to 40 percent in the upper part of the control section and 1 to 10
percent in the lower part of the control section
Upper part of control section carbonate clay: 2 to 15 percent
Upper part of control section noncarbonate clay: 18 to 25 percent
Depth to sandy-skeletal material: 50 to 100 cm
Rock fragments: 0 to 20 percent in the upper part of the control section
and 20 to 60 percent in the lower part of the control section
Soil reaction: slightly to strongly alkaline
Mean annual soil temperature: 3.9 to 7.2 degrees C.
Mean summer soil temperature: 6.1 to 12.8 degrees C. (cryic soil temperature regime)
A horizon
Hue: 7.5YR to 2.5Y moist or dry
Value: 2 or 3 moist, 4 or 5 dry
Chroma: 1 to 3 moist, 1 or 2 dry
Redoximorphic features: Hue 10YR or 7.5YR moist, value 3 or 4
moist, chroma 3 or 4 moist
Calcium carbonate equivalent: 0 to 10 percent
Bkg horizons
Hue: 10YR or 2.5Y moist or dry
Value: 4 to 6 moist, 7 or 8 dry
Chroma: 1 or 2 moist or dry
Texture: L, SIL, SICL
Redoximorphic features: Hue 10YR or 7.5YR moist, value 4 or 5
moist, chroma 3 to 6 moist
Calcium carbonate equivalent: 20 to 40 percent
2Bkg horizon (when present)
Hue: 10YR or 2.5Y moist
Value: 4 or 6 moist
Chroma: 1 or 2 moist
Rock fragment: 20 to 35 percent gravel
Calcium carbonate equivalent: 5 to 15 percent
2Cg horizon
Hue: 10YR, 2.5Y, N moist
Value: 3 to 5 moist
Chroma: 0 to 3 moist
Texture: S or LS with 0 to 60 percent gravel
Calcium carbonate equivalent: 0 to 5 percent
COMPETING SERIES: There are no other series in the same family.
GEOGRAPHIC SETTING:
Landscape: alluvial and outwash plains
Landform: flats, rises, hummocks, and low stream terraces on valley floors and fan
remnants
Elevation: 1807 to 1847 meters
Slope: 0 to 2 percent
Parent material: mixed alluvium
Mean annual air temperature: 3.3 to 6.7 degrees C
Mean annual precipitation: 305 to 457 mm
Frost free period: 20 to 50 days
GEOGRAPHICALLY ASSOCIATED SOILS: These are the Foxcreek, Redfish, Zohner, and Zundell soils. Foxcreek, Redfish, and Zohner soils are on the same landforms. Foxcreek and Redfish are not calcareous. Zohner soils are carbonatic and have a fine loamy particle size class. Zundell soils are on the same landforms but on adjacent rises and hummocks and have a xeric soil moisture regime.
DRAINAGE AND SATURATED HYDRAULIC CONDUCTIVITY:
Drainage class: poorly drained
Runoff: negligible
Saturated hydraulic conductivity: moderately high in the upper part and high in the
horizons below the discontinuity
Flooding frequency and duration: occasional flooding for long periods in May to July
USE AND VEGETATION:
Major uses: pasture and hay
Range/ecological site: R013XY039ID
Dominant native vegetation: baltic rush, nebraska sedge, redtop, shrubby cinquefoil and
scattered willows
DISTRIBUTION AND EXTENT:
Distribution: Southeastern Idaho, and western Wyoming; MLRA 13
Extent: the series is not extensive
MLRA SOIL SURVEY REGIONAL OFFICE (MO) RESPONSIBLE: Portland, Oregon
SERIES ESTABLISHED: Teton County, Idaho, 1975; Teton Area, Idaho-Wyoming
Soil Survey
REMARKS: The calcareous class was added to the classification of this soil in 2007.
Diagnostic horizons and soil characteristics recognized in this pedon are:
Mollic epipedon: from a depth of 0 to 36 cm
Calcic horizon: from a depth of 36 to 84 cm
Redoximorphic features (iron concentrations/depletions): beginning at a depth of 36 cm
Particle size control section: From a depth of 25 to 100 cm. The upper part from 25 to 84 cm is fine-loamy (loam). The lower part from 84 cm to 100 cm is sandy (sand) with weighted average rock fragments of 22 percent.
Effervescence: slightly to strongly effervescent in the calcareous class control section,
from a depth of 25 to 50 cm
Soil temperature regime: cryic
Soil moisture regime: aquic
ADDITIONAL DATA:
Lab data from NSSL, Lincoln, NE:
Typical pedon was not sampled.
Additional reference samples are PEDON ID S05-ID-081-001.