LOCATION BUCKETLAKE OR
Established Series
Rev. AEK/DAL/KMS
11/2018
BUCKETLAKE SERIES
Landscape--mountains
Landform--mountain slopes, terraces on mountain valleys, valley floors on mountain slopes, north-facing ground and lateral moraines
Slope--0 to 90 percent
Parent material--thick mantle of volcanic ash over till or alluvium
Mean annual precipitation--about 940 mm
Mean annual air temperature--about 3 degrees C
Depth class--very deep
Drainage class--well drained
Soil moisture regime--udic
Soil temperature regime--cryic
Soil moisture subclass--typic
TAXONOMIC CLASS: Ashy over loamy-skeletal, amorphic over isotic Typic Vitricryands
TYPICAL PEDON: Bucketlake ashy silt loam in an area of woodland, on a 56-percent slope at an elevation of 1667 m
Oi--0 to 3 cm; partially decomposed moss, grass, and twigs
A--3 to 13 cm; ashy silt loam, brown (10YR 5/3) dry, dark brown (10YR 3/3) moist; weak very fine granular structure; soft, very friable, slightly sticky and slightly plastic; many very fine and few fine roots; many very fine and few fine irregular pores; 5 percent gravel; strongly acid (pH 5.4); clear smooth boundary
Bw1--13 to 39 cm; ashy silt loam, yellowish brown (10YR 5/4) dry, dark yellowish brown (10YR 4/4) moist; weak medium subangular blocky structure; soft, very friable, slightly sticky and slightly plastic; common very fine and few fine roots; common very fine and few fine tubular pores; 5 percent gravel; moderately acid (pH 5.7); abrupt smooth boundary
2Bw2--39 to 56 cm; very cobbly coarse sandy loam, light yellowish brown (10YR 6/4) dry, dark yellowish brown (10YR 4/4) moist; weak medium subangular blocky structure; soft, very friable, slightly sticky and nonplastic; common very fine and few fine roots; common very fine and few fine irregular pores; 15 percent gravel and 20 percent cobbles; moderately acid (pH 5.8); clear wavy boundary
2Bw3--56 to 97 cm; very cobbly coarse sandy loam, yellowish brown (10YR 5/4) dry, dark yellowish brown (10YR 4/4) moist; weak fine subangular blocky structure; soft, very friable, slightly sticky and nonplastic; common very fine and few fine and medium roots; common very fine and few fine irregular pores; 20 percent gravel and 25 percent cobbles; slightly acid (pH 6.1); gradual wavy boundary
2BC--97 to 157 cm; very cobbly coarse sandy loam, light yellowish brown (10YR 6/4) dry, dark yellowish brown (10YR 4/4) moist; weak fine subangular blocky structure; soft, very friable, nonsticky and nonplastic; few very fine and fine roots; few very fine irregular pores; 20 percent gravel and 20 percent cobbles; neutral (pH 6.6)
TYPE LOCATION: Wallowa County, Oregon, about 8 km west of the town of Joseph, above Alder Slope near Spring Creek; 304 m south and 762 m west of the northeast corner of section 28, T. 2 S., R. 44 E.; latitude 45.3646030, longitude -117.3218798, datum WGS 84 (coordinates estimated from PLSS details)
RANGE IN CHARACTERISTICS:
Mean annual soil temperature--2 to 5 degrees C
Mean summer soil temperature--5 to 9 degrees C
Mean winter soil temperature-- -2 to 2 degrees C
Soil moisture--usually dry 30 to 45 consecutive days
Thickness of ash-influenced layers--36 to 51 cm
Estimated properties of layers influenced by volcanic ash
*Ammonium oxalate extractable Al + 1/2 Fe--2 to 3 percent
*0.02- to 2.0-mm fraction--60 to 70 percent
*Glass content in 0.02- to 2.0-mm fraction--60 to 90 percent
*1/3-bar bulk density--0.75 to 1.05 g/cm3
*Phosphate retention--60 to 90 percent
*15-bar water retention--5 to 12 percent (dried samples)
A horizon
Hue--7.5YR, 10YR
Value--2 to 5 moist, 3 to 7 dry
Chroma--2 to 4 moist or dry
Fine-earth texture--ashy silt loam
Clay content--5 to 15 percent
Sand content--15 to 25 percent
Organic matter content--1 to 6 percent
Total rock fragment content--0 to 10 percent
Gravel content--0 to 5 percent
Cobble content--0 to 3 percent
Stone content--0 to 3 percent
Boulder content--0 to 3 percent
Reaction--5.1 to 6.5
Bw1 horizon
Hue--7.5YR, 10YR
Value--4 or 5 moist, 5 to 8 dry
Chroma--4 to 6 moist or dry
Fine-earth texture--ashy silt loam
Clay content--5 to 15 percent
Sand content--15 to 25 percent
Organic matter content--1 to 3 percent
Total rock fragment content--0 to 30 percent
Gravel content--5 to 20 percent
Cobble content--0 to 10 percent
Stone content--0 to 10 percent
Boulder content--0 to 15 percent
Reaction--5.1 to 6.5
2Bw horizon
Hue--10YR, 2.5Y
Value--4 or 5 moist, 5 to 8 dry
Chroma--4 to 6 moist or dry
Fine-earth texture--coarse sandy loam, sandy loam, loam, silt loam
Clay content--5 to 10 percent
Sand content--25 to 75 percent
Organic matter content--1 to 2 percent
Total rock fragment content--20 to 80 percent
Gravel content--10 to 25 percent
Cobble content--10 to 25 percent
Stone content--0 to 20 percent
Boulder content--0 to 30 percent
Reaction--5.6 to 6.5
2BC horizon
Hue--10YR, 2.5Y
Value--4 or 5 moist, 5 to 7 dry
Chroma--4 to 6 moist or dry
Fine-earth texture--coarse sandy loam, sandy loam
Clay content--5 to 10 percent
Sand content--55 to 75 percent
Organic matter content--1 percent
Total rock fragment content--35 to 80 percent
Gravel content--15 to 40 percent
Cobble content--15 to 25 percent
Stone content--0 to 20 percent
Boulder content--0 to 30 percent
Reaction--6.1 to 7.3
COMPETING SERIES:
Angelpeak--lithic contact at a depth of 100 to 150 cm (deep)
Ashnola--densic contact at a depth of 90 to 125 cm (moderately deep or deep)
Ducklake--densic contact at a depth of 100 to 150 cm (deep)
Lackeyshole--lithic contact at a depth of 100 to 150 cm (deep)
McCalpinemeadow--lithic contact at a depth of 25 to 50 cm (shallow)
Mountemily--18 to 30 percent clay in loamy-skeletal part of particle-size control section
Mudlakebasin--lithic contact at a depth of 50 to 100 cm (moderately deep)
Towermountain--paralithic contact at a depth of 50 to 100 cm (moderately deep)
Troutmeadows--lithic contact at a depth of 50 to 100 cm (moderately deep)
Ufish--lithic contact at a depth of 100 to 150 cm (deep)
GEOGRAPHIC SETTING:
Elevation--1210 to 2220 m
Climate--cold, wet winters; cool, moist summers
Mean annual precipitation--480 to 1430 mm
Mean annual air temperature-- -1 to 7 degrees C
Frost-free period--15 to 75 days
GEOGRAPHICALLY ASSOCIATED SOILS:
Marblepoint (T)--volcanic ash 18 to 36 cm thick
Mudlakebasin (T)--moderately deep
Prouty--moderately deep; volcanic ash 18 to 36 cm thick
Teewinot--shallow; volcanic ash less than 18 cm thick
DRAINAGE AND SATURATED HYDRAULIC CONDUCTIVITY:
Saturation during normal years--none
Flooding--none
Ponding--none
Saturated hydraulic conductivity (Ksat)--high over very high
USE AND VEGETATION:
Use--timber production, watershed, recreation, wildlife habitat
Potential native vegetation--Engelmann spruce, subalpine fir, lodgepole pine, grand fir, western larch, Douglas-fir, Sitka alder, ponderosa pine, big huckleberry, grouse huckleberry, heartleaf arnica, western rattlesnake plantain, darkwoods violet, prince's pine, sidebells wintergreen, Utah honeysuckle, northern twinflower, currant, skunkleaf polemonium, pinegrass, Sitka valerian, singleleaf pinyon, western meadow-rue, sweetcicely, sickletop lousewort, largeleaf sandwort, elk sedge, pyrola, Piper's anemone, white hawkweed, baldhip rose, violet, myrtle pachystima, northwestern sedge, Columbia brome, queencup bead lily, longtube twinflower
DISTRIBUTION AND EXTENT: Blue Mountains in northeastern Oregon; MLRA 10; small extent
SOIL SURVEY REGIONAL OFFICE (SSRO) RESPONSIBLE: Portland, Oregon
SERIES ESTABLISHED: Wallowa County, Oregon; 1998
REMARKS:
Diagnostic horizons and other features recognized in this pedon
*Ochric epipedon
*Cambic horizon--zone from 13 to 97 cm
*Volcanic glass--zone from 3 to 39 cm
*Andic soil properties--zone from 3 to 39 cm
*Depth to lithologic discontinuity--39 cm
*Particle-size control section--zone from 3 to 103 cm
10/2018--The type location of the Bucketlake OSD was moved from Baker County to the location in the Wallowa County TUD. The Baker County version of the series was not used in published data; it only existed in the OSD. The version in the Wallowa County TUD was published in several soil surveys of the Blue Mountains and in the Wallowa County soil survey.
National Cooperative Soil Survey
U.S.A.