LOCATION WINDICREEK              ID

Established Series
Rev. KA/MD/WGH
05/2018

WINDICREEK SERIES

Landscape--hills
Landform--fan remnants, alluvial fans
Slope--1 to 75 percent
Parent material--alluvium derived from conglomerate
Mean annual precipitation--about 450 mm
Mean annual air temperature--about 3.3 degrees C
Depth class--very deep
Drainage class--well drained
Soil moisture regime--xeric
Soil temperature regime--cryic

TAXONOMIC CLASS: Loamy-skeletal, mixed, superactive Calcic Haplocryolls

TYPICAL PEDON: Windicreek very gravelly loam in an area of rangeland (Colors are for dry soil unless otherwise noted.)

A--0 to 8 cm; dark grayish brown (10YR 4/2) very gravelly loam, very dark brown (10YR 2/2) moist; weak fine subangular blocky structure parting to weak fine granular; soft, very friable, slightly sticky and slightly plastic; common very fine and fine and few medium roots; few very fine tubular pores; 40 percent gravel and 5 percent cobbles; neutral (pH 7.2); clear wavy boundary

Bw--8 to 23 cm; brown (10YR 4/3) gravelly loam, dark brown (10YR 3/3) moist; weak fine subangular blocky structure parting to weak fine granular; soft, very friable, slightly sticky and slightly plastic; common very fine and fine and few medium roots; few very fine tubular pores; 15 percent gravel and 5 percent cobbles; slightly alkaline (pH 7.4); clear smooth boundary

Bk1--23 to 53 cm; yellowish brown (10YR 5/4) gravelly sandy loam, dark yellowish brown (10YR 4/4) moist; weak very fine subangular blocky structure parting to weak fine granular; soft, friable, slightly sticky and slightly plastic; common very fine and fine roots; few very fine tubular pores; violently effervescent (15 percent calcium carbonate equivalent); finely disseminated calcium carbonates and few calcium carbonate coatings on rock fragments; 25 percent gravel and 5 percent cobbles; slightly alkaline (pH 7.8); abrupt wavy boundary

Bk2--53 to 127 cm; very pale brown (10YR 8/2) extremely gravelly sandy loam, grayish brown (2.5Y 5/2) moist; massive; soft, very friable, nonsticky and nonplastic; few very fine and fine roots; few very fine tubular pores; violently effervescent (25 percent calcium carbonate equivalent); finely disseminated calcium carbonates and many calcium carbonate coatings on rock fragments; 70 percent gravel and 10 percent cobbles; moderately alkaline (pH 8.4); clear wavy boundary

Bk3--127 to 157 cm; very pale brown (10YR 8/2) extremely gravelly sandy loam, light brownish gray (2.5Y 6/2) moist; massive; soft, very friable, nonsticky and nonplastic; few very fine and fine roots; few very fine tubular pores; violently effervescent (18 percent calcium carbonate equivalent); finely disseminated calcium carbonates throughout soil matrix and common calcium carbonate coatings on rock fragments; 60 percent gravel and 5 percent cobbles; strongly alkaline (pH 8.6)

TYPE LOCATION: Clark County, Idaho; latitude 44.37656 degrees north, longitude 112.41361 degrees west; datum WGS 84

RANGE IN CHARACTERISTICS:
Mean annual soil temperature--2.2 to 6.1 degrees C
Thickness of mollic epipedon--23 to 40 cm
Depth to calcic horizon--23 to 40 cm

Particle-size control section (weighted averages)
Clay content--9 to 15 percent
Total rock fragment content--45 to 70 percent
Calcium carbonate equivalent--15 to 35 percent

A horizon
Value--3 to 5 dry, 2 or 3 moist
Chroma--2 or 3 dry or moist
Clay content--8 to 18 percent
Total rock fragment content--35 to 55 percent
Gravel content--35 to 45 percent
Cobble content--0 to 10 percent
Reaction--pH 6.6 to 7.8
Thickness--8 to 10 cm

Bw horizon
Value--4 to 5 dry, 2 or 3 moist
Chroma--2 or 3 dry or moist
Texture (less than 2-mm fraction)--loam, sandy loam
Clay content--11 to 18 percent
Total rock fragment content--15 to 55 percent
Gravel content--15 to 45 percent
Cobble content--0 to 10 percent
Reaction--pH 7.0 to 7.8
Thickness--15 to 25 cm

Bk horizon
Hue--10YR or 2.5Y dry or moist
Value--5 to 8 dry, 2 to 4 moist
Chroma--2 to 4 dry or moist
Texture (less than 2-mm fraction)--loam, sandy loam
Clay content--6 to 18 percent
Total rock fragment content--25 to 85 percent
Gravel content--20 to 55 percent
Cobble content--5 to 10 percent
Reaction--pH 7.9 to 8.4

COMPETING SERIES:
Farlow--deep to lithic contact
McNinch, Rockisland, Silvercliff--ustic soil moisture regime

GEOGRAPHIC SETTING:
Elevation--1670 to 2740 m
Mean annual precipitation--300 to 575 mm
Mean annual air temperature--1.1 to 5.6 degrees C
Frost-free period--30 to 60 days

GEOGRAPHICALLY ASSOCIATED SOILS: None listed

DRAINAGE AND SATURATED HYDRAULIC CONDUCTIVITY:
Drainage class--well drained
Saturated hydraulic conductivity (Ksat)--5 to 100 um/sec

USE AND VEGETATION:
Major uses--rangeland, wildlife habitat
Potential natural vegetation--mountain big sagebrush, Idaho fescue, bluebunch wheatgrass, rabbitbrush, lupine

DISTRIBUTION AND EXTENT: Small extent in east-central Idaho; MLRA 12

SOIL SURVEY REGIONAL OFFICE (SSRO) RESPONSIBLE: Portland, Oregon

SERIES ESTABLISHED: Clark County Area, Idaho; 2018

REMARKS:
Diagnostic horizons and other features recognized in this pedon
Mollic epipedon--zone from the surface to a depth of 23 cm
Calcic horizon--zone from 23 to 157 cm
Particle-size control section--zone from 25 to 100 cm

Taxonomic version--Twelfth Edition, 2014

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National Cooperative Soil Survey
U.S.A.