LOCATION PINOCHLE ID+WY
Established Series
Rev. CBR/TDT
04/2011
PINOCHLE SERIES
The Pinochle series consists of moderately deep, well drained soils that formed in residuum weathered from rhyolite. Pinochle soils are on mountain slopes. Slopes range from 2 to 60 percent. Mean annual precipitation is about 710 mm and the mean annual temperature is about 3.9 degrees C.
TAXONOMIC CLASS: Loamy-skeletal, mixed, superactive, frigid Pachic Haploxerolls
TYPICAL PEDON: Pinochle gravelly loam, on a west facing, convex, 48 percent slope in rangeland at an elevation of 1,950 meters. (Colors are for dry soil unless otherwise noted.) The surface is covered by 20 percent gravel, 5 percent cobbles and 5 percent stones.
A--0 to 12 cm; dark grayish brown (10YR 4/2) gravelly loam, very dark gray (7.5YR 3/1), moist; weak very fine granular structure; soft, very friable, nonsticky and nonplastic; many very fine and common fine and medium roots; many very fine irregular and common very fine tubular pores; 10 percent gravel and 5 percent cobbles; neutral (pH 7.0); abrupt wavy boundary. (12 to 33 cm thick)
AB--12 to 30 cm; brown (10YR 4/3) very cobbly silt loam, very dark gray (7.5YR 3/1) moist; weak medium subangular blocky structure parting to moderate medium granular; slightly hard, friable, slightly sticky and nonplastic; many very fine, common medium and coarse, and few fine roots; many very fine tubular pores; 20 percent gravel and 20 percent cobbles; neutral (pH 7.0); clear wavy boundary. (0 to 28 cm thick)
Bw1--30 to 42 cm; brown (10YR 4/3) extremely flaggy silt loam, very dark brown (7.5YR 2.5/3) moist; moderate fine subangular blocky structure; slightly hard, friable, slightly sticky and slightly plastic; common very fine and medium and few fine roots; many very fine tubular pores; 20 percent gravel, 10 percent channers, and 45 percent flagstones; neutral (pH 7.2); clear wavy boundary.
Bw2--42 to 55 cm; brown (10YR 5/3) extremely flaggy loam, dark brown (7.5YR 3/3) moist; moderate fine subangular blocky structure; soft, very friable, nonsticky and nonplastic; many very fine and common medium roots in cracks and a continuous root mat at the contact between Bw2 and R horizons; common very fine irregular pores; 20 percent gravel, 5 percent channers and 60 percent flagstones; neutral (pH 7.3); abrupt wavy boundary. (Combined thickness of the Bw horizons is 25 to 38 cm)
R--55 cm; rhyolite bedrock.
TYPE LOCATION: Teton County, Idaho; about 4.8 kilometers northeast of Felt; located about 78 meters north and 788 meters east of the southwest corner of sec. 27, T. 7 N., R. 45 E.; Lamont USGS quad; lat. 43 degrees 53 minutes 49.6 seconds N. and long. 111 degrees 7 minutes 47.9 seconds W., NAD 83.
RANGE IN CHARACTERISTICS:
Mollic epipedon: 50 to 65 cm
Particle size control section average clay: 18 to 22 percent
Particle size control section average rock fragments: 50 to 80 percent
Depth to bedrock: 50 to 100 cm
Reaction: neutral to slightly alkaline
Soil moisture regime: xeric
Mean annual soil temperature: 5.0 to 8.0 degrees C. (frigid soil temperature regime)
Mean summer soil temperature: 15.0 to 18.3 degrees C.
A horizons:
Hue: 7.5YR or 10YR dry
Value: 2.5 or 3 moist
Chroma: 2 or 3 dry, 1 or 2 moist
Rock fragments: 15 to 30 percent total; 5 to 20 percent gravel, 0 to 5 percent channers, 0 to 10 percent cobbles, and 0 to 5 percent stones
AB horizon:
Value: 4 or 5 dry, 2.5 or 3 moist
Fine-earth texture: SIL or L
Rock fragments: 20 to 50 percent total; 15 to 30 percent gravel, 0 to 15 percent channers and 0 to 15 percent cobbles
Bw horizons:
Hue: 7.5YR or 10YR dry or moist
Value: 4 to 6 dry, 2.5 to 4 moist
Chroma: 2 to 4 moist
Fine-earth texture: SIL or L
Rock fragments: 55 to 90 percent total; 5 to 40 percent gravel, 0 to 15 percent channers, 0 to 20 percent cobbles, 25 to 65 percent flagstones and 0 to 25 percent stones
COMPETING SERIES: These are the
Baldridge,
Beehunt,
Burgi,
Chambeam,
Climine,
Ginser,
Glean,
Lambring,
Lonecabin,
Rondowa,
Shorthike,
Sinker,
Smidale,
Webfoot,
Westbutte and
Willynat series. Baldridge, Chambeam, Glean and Lambring soils are deep. Beehunt, Burgi, Climine, Lonecabin, Rondowa, Shorthike, Smidale, Webfoot and Willynat soils are very deep. Ginser and Westbutte soils do not have flagstones in the particle size control section. Sinker soils have less than 10 percent flagstones in the particle size control section.
GEOGRAPHIC SETTING:
Landscape: mountains
Landform: mountain slope
Elevation: 1,797 to 2,392 meters
Slopes: 2 to 60 percent
Parent material: residuum derived from rhyolite
Mean annual air temperature: 3.3 to 5.6 degrees C
Mean annual precipitation: 457 to 914 mm
Frost-free period: 50 to 90 days
GEOGRAPHICALLY ASSOCIATED SOILS: These are the
Conneridge,
Dra and
Grouse(T) soils. The Conneridge soils have a calcic horizon and are on convex postions. The Dra soils are very deep and are on linear positions. The Grouse soils have a fine-silty particle size class and are on linear positions.
DRAINAGE AND SATURATED HYDRAULIC CONDUCTIVITY:
Drainage class: well drained
Runoff: high
Saturated hydraulic conductivity: moderately high
USE AND VEGETATION:
Major uses: livestock grazing and wildlife habitat
Dominant native vegetation: Mountain big sagebrush, serviceberry, bluebunch wheatgrass, Idaho fescue, mountain brome, arrowleaf balsamroot
DISTRIBUTION AND EXTENT:
Distribution: Southeastern Idaho and western Wyoming; MLRA 13 and 43B
Extent: the series is not extensive
MLRA SOIL SURVEY REGIONAL OFFICE (MO) RESPONSIBLE: Portland, Oregon
SERIES ESTABLISHED: Teton County, Idaho, 2011; Teton Area, Idaho and Wyoming Soil Survey.
REMARKS:
Diagnostic horizons and soil characteristics recognized in this pedon are:
Mollic epipedon: The zone from 0 to 55 cm
Lithic contact: rhyolite bedrock at 55 cm
Particle size control section: The zone from 25 to 55 cm
Soil temperature regime: frigid
Soil moisture regime: xeric
ADDITIONAL DATA:
The typical pedon was not sampled.
National Cooperative Soil Survey
U.S.A.