LOCATION KYOTESUE                OR

Tentative Series
Rev. TDT/BTH
02/2025

KYOTESUE SERIES

Landscape--Cascade Mountains
Landform--moraines, mountains, mountain valleys
Slope--0 to 65 percent
Parent material--till and colluvium derived from basalt and andesite mixed with volcanic ash
Mean annual precipitation--about 1170 mm
Mean annual air temperature--about 5.0 degrees C
Depth class--deep to very deep
Drainage class--well drained
Soil moisture regime--udic
Soil temperature regime--frigid
Soil moisture subclass--typic

TAXONOMIC CLASS: Medial-skeletal, amorphic, frigid Typic Hapludands

TYPICAL PEDON: Kyotesue very gravelly medial loam, on a forested moraine, at an elevation of 1289 m

Oi--0 to 7 cm; slightly decomposed needles and twigs

A1--7 to 13 cm; very gravelly medial loam, brown (7.5YR 5/3) dry, dark brown (7.5YR 3/3) moist; weak very fine granular structure; soft, very friable, nonsticky and nonplastic; many roots; many very fine pores; 45 percent gravel and 10 percent cobbles and stones; slightly acid (pH 6.2); clear wavy boundary

A2--13 to 23 cm; very gravelly medial loam, brown (7.5YR 5/4) dry, dark brown (7.5YR 3/4) moist; weak very fine granular structure; soft, very friable, nonsticky and slightly plastic; many roots; many very fine pores; 40 percent gravel and 10 percent cobbles and stones; slightly acid (pH 6.2); clear wavy boundary

AB--23 to 50 cm; very gravelly medial loam, light brown (7.5YR 6/3) dry, dark brown (7.5YR 3/4) moist; weak very fine granular structure; soft, very friable, slightly sticky and slightly plastic; many roots; many very fine pores; 40 percent gravel and 10 percent cobbles and stones; slightly acid (pH 6.4); gradual wavy boundary

Bw1--50 to 74 cm; very gravelly medial loam, light yellowish brown (10YR 6/4) dry, dark yellowish brown (10YR 3/4) moist; weak very fine and fine granular structure; soft, very friable, slightly sticky and slightly plastic; common roots; many fine pores; 35 percent gravel and 10 percent cobbles and stones; slightly acid (pH 6.4); gradual wavy boundary

Bw2--74 to 94 cm; very gravelly medial loam, pale brown (10YR 6/3) dry, dark yellowish brown (10YR 3/4) moist; weak very fine and fine subangular blocky structure; slightly hard, friable, slightly sticky and slightly plastic; few roots; few very fine tubular pores; 35 percent gravel and 20 percent cobbles and stones; slightly acid (pH 6.5); gradual wavy boundary

BC--94 to 160 cm; extremely cobbly medial loam, pale brown (10YR 6/3) dry, dark brown (10YR 3/3) moist; massive; slightly hard, friable, slightly sticky and slightly plastic; few roots; many very fine pores; 40 percent gravel and 25 percent cobbles and stones; neutral (pH 6.6)

TYPE LOCATION: Klamath County, Oregon; along U.S. Forest Service road #3562; about 494 m north and 152 m east of the southwest corner of sec. 11, T. 35 S., R. 6 E., Willamette Meridian; Crystal Spring, Oregon USGS quadrangle; latitude 42.5373 degrees north, longitude 122.09 degrees west, datum WGS84 (coordinates estimated from GIS)

RANGE IN CHARACTERISTICS:

*Soil temperature regime--frigid
*Mean annual soil temperature-- 5.0 to 8.0 degrees C
*Moisture control section--30 to 90 cm; dry for 30 to 45 consecutive days
*Rock fragments--subrounded andesite, scoriaceous cinders and basalt
*Pararock fragments--moderately cemented pumice or andesite

Some pedons have a strongly cemented duripan between 100 and 200 cm from the surface.

Particle-size control section
*Rock fragment content--35 to 65 percent
*Clay content--15 to 25 percent

Estimated properties
*Thickness--100 to greater than 150 cm
*Ammonium oxalate extractable Al plus 1/2 Fe--3 to 5 percent
*P retention--75 to 100 percent
*Volcanic glass content--15 to 30 percent
*1/3-bar bulk density--surface (A and AB) horizons 0.50 to 0.85 g/cm3; subsurface (Bw and BC) horizons 0.85 to 1.0 c/cm3
*1500 kPa water (air-dried samples)--15 to 30 percent

Oi horizon (and Oa or Oe horizons, where present)
*Thickness--1 to 10 cm

A horizons
*Hue--10YR, 7.5YR, or 5YR moist or dry
*Value--3 or 4 moist, 3 to 5 dry
*Chroma--2 to 4 moist, 3 or 4 dry
*Fine-earth texture--medial loam or medial sandy loam
*Clay content--2 to 25 percent
*Total content of rock and pararock fragments--20 to 59 percent
*Paragravel content--0 to 5 percent
*Gravel content--10 to 50 percent
*Cobble content--0 to 20 percent
*Stone content--0 to 5 percent
*Boulder content--0 to 5 percent
*Reaction--moderately acid to neutral (pH 5.6 to 7.3)
*Thickness--3 to 36 cm

AB horizon
*Hue--10YR, 7.5YR, or 5YR moist or dry
*Value--3 or 4 moist, 3 to 6 dry
*Chroma--2 to 4 moist, 3 or 4 dry
*Fine-earth texture--medial loam or medial sandy loam
*Clay content--2 to 25 percent
*Total content of rock and pararock fragments--20 to 59 percent
*Paragravel content--0 to 5 percent
*Gravel content--10 to 50 percent
*Cobble content--0 to 30 percent
*Stone content--0 to 10 percent
*Boulder content--0 to 5 percent
*Reaction--moderately acid to slightly acid (pH 5.6 to 6.5)
*Thickness--0 to 50 cm

Bw horizons
*Hue--10YR, 7.5YR, or 5YR moist or dry
*Value--3 or 4 moist, 4 to 6 dry
*Chroma--3 or 4 moist or dry
*Fine-earth texture--medial loam or medial sandy loam
*Clay content--2 to 25 percent
*Total content of rock and pararock fragments--35 to 80 percent
*Paragravel content--0 to 3 percent
*Gravel content--10 to 50 percent
*Cobble content--5 to 30 percent
*Stone content--0 to 10 percent
*Boulder content--0 to 5 percent
*Reaction--moderately acid to slightly acid (pH 5.6 to 6.5)
*Thickness--20 to 84 cm

BC horizon
*Hue--10YR, 7.5YR, 5YR moist or dry
*Value--3 or 4 moist, 4 to 6 dry
*Chroma--3 or 4 moist, 3 to 6 dry
*Fine-earth texture--medial loam or medial sandy loam
*Clay content--2 to 15 percent
*Total content of rock and pararock fragments--35 to 85 percent
*Paragravel content--0 to 3 percent
*Gravel content--10 to 55 percent
*Cobble content--5 to 30 percent
*Stone content--0 to 10 percent
*Boulder content--0 to 5 percent
*Reaction--moderately acid to neutral (pH 5.6 to 7.3)

COMPETING SERIES:
Coolcamp--umbric epipedon
Huss--umbric epipedon; 50 to 100 cm to lithic contact

GEOGRAPHIC SETTING:
Elevation--1250 to 2140 m
Climate--humid, wet winters and springs
Mean annual air temperature-- 3.0 to 7.2 degrees C
Mean annual precipitation--580 to 1760 mm
Frost-free period--40 to 90 days

GEOGRAPHICALLY ASSOCIATED SOILS:
Llaorock--vitric subgroup
Otwin--moderately deep; cryic
Woodcock--argillic horizon; xeric soil moisture regime; mollic epipedon
Pokegema--medial particle size class; xeric soil moisture regime; mollic epipedon
Oatman--cryic

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

USE AND VEGETATION:
Use--timber production, wildlife habitat, recreation
Vegetation--white fir, Douglas-fir, ponderosa pine, incense cedar, sugar pine, mountain brome, western prince's pine, sedge

DISTRIBUTION AND EXTENT: Cascade Mountains in southern Oregon; MLRA 3; moderate extent

SOIL SURVEY REGIONAL OFFICE (SSRO) RESPONSIBLE: Bozeman, Montana

SERIES PROPOSED:
Klamath County, Oregon, 2010

REMARKS:
Diagnostic horizons and features in this pedon
*Ochric epipedon
*Andic soil properties--7 to 160 cm
*Cambic horizon--50 to 94 cm
Udic soil moisture regime based on correlation to white fir plant associations and ecological sites.
Andic soil properties based on laboratory data from NSSL S01OR-035-002, 003, 004, and 005.
Hapludands--15 bar dry is more than 15 percent throughout.
Medial--andic soil properties are present throughout the particle-size control section. The 15 bar water dry is more than 15 percent throughout.
Amorphic--the particle-size control section has over 2 percent acid oxalate extractable silica.

ADDITIONAL DATA:
NASIS SITE ID--1977OR035009; NASIS PEDON ID--1977OR035009

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National Cooperative Soil Survey
U.S.A.