LOCATION KAKYATICHAM             WA

Established Series
Rev. PNP/KDPL/SBC
09/2019

KAKYATICHAM SERIES

Landscape--mountain valleys
Landform--valley floor
Slope--0 to 20 percent
Parent material--mixed volcanic ash and loess over basalt residuum
Mean annual precipitation--about 1000 mm
Mean annual air temperature--about 6 degrees C
Depth class--moderately deep
Drainage class--well drained
Soil moisture regime--xeric
Soil temperature regime--frigid
Soil moisture subclass--typic

TAXONOMIC CLASS: Fine-loamy, mixed, superactive, frigid Vitrandic Haploxeralfs

TYPICAL PEDON: Kakyaticham ashy silt loam in an area of rangeland, on a 6-percent, north-facing slope at an elevation of 1475 m (All textures are apparent field textures.)

A--0 to 13 cm; ashy silt loam, brown (10YR 5/3) dry, brown (10YR 4/3) moist; strong medium granular structure; soft, friable, nonsticky and nonplastic; common very fine and fine roots; few fine irregular pores; 5 percent gravel; neutral (pH 6.8); clear wavy boundary

AB--13 to 20 cm; ashy silt loam, yellowish brown (10YR 5/4) dry, brown (10YR 4/3) moist; strong medium angular blocky structure parting to strong medium granular; slightly hard, friable, nonsticky and nonplastic; common very fine and fine roots; few very fine and fine irregular pores; 5 percent gravel; neutral (pH 6.8); gradual wavy boundary

Bt1--20 to 46 cm; silt loam, yellowish brown (10YR 5/4) dry, dark yellowish brown (10YR 4/4) moist; strong medium angular blocky structure; slightly hard, firm, slightly sticky and slightly plastic; common very fine, fine, and medium roots; few fine tubular pores; common faint clay films on faces of peds and in pores; 5 percent gravel; neutral (pH 6.8); gradual wavy boundary

Bt2--46 to 89 cm; silt loam, yellowish brown (10YR 5/4) dry, dark yellowish brown (10YR 4/4) moist; strong medium angular blocky structure; slightly hard, firm, slightly sticky and slightly plastic; few very fine roots; common fine and few medium tubular pores; common faint clay films on faces of peds and in pores; 5 percent gravel and 5 percent cobbles; neutral (pH 6.8); clear smooth boundary

R--89 cm; basalt

TYPE LOCATION: Yakama Nation, Yakima County, Washington, about 15 km west of Fort Simcoe; about 425 m north and 490 m west of the southeast corner of section 15, T. 10 N., R. 14 E.; latitude 46.3515448, longitude -121.0486018, datum WGS 84 (coordinates estimated from section, township, and range)

RANGE IN CHARACTERISTICS:
Mean annual soil temperature at a depth of 50 cm--7 to 8 degrees C
Moisture control section--usually moist, but dry in all parts 75 to 90 consecutive days following summer solstice
Depth to bedrock and thickness of solum--50 to 100 cm
Particle-size control section--averages 18 to 30 percent clay and 5 to 25 percent rock fragments
Upper 20 to 35 cm of mineral soil--estimated volcanic glass content of 5 to 20 percent, acid oxalate aluminum plus one-half iron of 1 to 1.5 percent, and 15-bar water retention of 5 to 10 percent (air-dried samples)

A horizon
Hue--7.5YR, 10YR
Value--3 to 5 dry, 2 to 4 moist
Chroma--2 to 4 dry or moist
Rock fragment content--0 to 10 percent
Thickness--8 to 25 cm

AB horizon
Thickness--5 to 25 cm

Bt horizon
Hue--7.5YR, 10YR
Value--4 or 5 dry, 3 or 4 moist
Chroma--3 to 6 dry or moist
Texture--cobbly loam, gravelly loam, silt loam, clay loam, silty clay loam
Rock fragment content--5 to 30 percent
Combined thickness--23 to 69 cm

COMPETING SERIES:
Arson--100 to 150 cm (deep) to a paralithic contact (siltite)
Seddow--100 to 150 cm (deep) to a lithic contact (basalt)

GEOGRAPHIC SETTING:
Elevation--1350 to 1550 m
Climate--cool, moist winters; warm, dry summers
Mean annual precipitation--890 to 1100 mm
Mean annual air temperature--6 to 7 degrees C
Frost-free season--70 to 100 days

GEOGRAPHICALLY ASSOCIATED SOILS:
Adamslake--on plateaus and backslopes; no lithic contact within a depth of more than 150 cm
Bocker--on ridgetops and backslopes; less than 25 cm (very shallow) to a lithic contact (basalt)
Singh--on backslopes; no lithic contact within a depth of more than 150 cm; skeletal subsoil
Stemilt--mountain backslopes and footslopes; 100 to 150 cm or more (deep, very deep) to a lithic contact (basalt, andesite); loamy-skeletal particle-size class

DRAINAGE AND SATURATED HYDRAULIC CONDUCTIVITY:
Drainage class--well drained
Saturated hydraulic conductivity (Ksat)--moderately high

USE AND VEGETATION:
Use--dominantly livestock grazing and wildlife habitat
Native vegetation--antelope bitterbrush, mountain big sagebrush, Idaho fescue, bluebunch wheatgrass, arrowleaf balsamroot, eriogonum

DISTRIBUTION AND EXTENT: Eastern slopes of Cascade Mountains, Yakama Nation, Yakima County, Washington; MLRA 6; small extent

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

SERIES ESTABLISHED: Yakama Nation, Yakima County, Washington; 2014

REMARKS:
Diagnostic horizons and other features recognized in this pedon
*Ochric epipedon
*Argillic horizon--zone from 20 to 89 cm
*Particle-size control section--zone from 20 to 89 cm
*Depth to lithic contact--89 cm

The Kakyaticham series originally was named the Jam series. Kakya ticham translates to animal land in Yakama. The Yakama Reservation Game Reserve is just north of the type location for this series.

ADDITIONAL DATA:
Partial laboratory data--sample number 48A-15-1; Yakama Nation Soils Laboratory, Toppenish, Washington

---

National Cooperative Soil Survey
U.S.A.