LOCATION BEECREEK                WA

Tentative Series
IRD. AJF/MGR/MPR
01/2025

BEECREEK SERIES

Landscape--mountains
Landform--ridge
Slope--0 to 60 percent
Parent material--residuum from metasedimentary rock
Mean annual precipitation--about 2500 mm
Mean annual air temperature--about 6 degrees C
Depth class--shallow
Drainage class--well drained
Soil moisture regime-- udic
Soil temperature regime--frigid
Soil moisture subclass--typic

TAXONOMIC CLASS: Loamy-skeletal, isotic, frigid Lithic Dystrudepts

TYPICAL PEDON: Beecreek very gravelly loam on southeast facing, forested ridge with slope of 35 percent at elevation of 930 m. (The soil was moist throughout when described.)

Oi--0 to 3cm; slightly decomposed plant material; abrupt smooth boundary

Oe--3 to 16cm; moderately decomposed plant material; abrupt wavy boundary

A--16 to 27 cm; brown (7.5YR 5/4) dry, brown (7.5YR 4/3) very gravelly loam; moderate fine granular structure; slightly hard, friable, non-sticky, slightly plastic; weakly smeary; common very fine and few fine, medium, coarse, and very coarse roots; few fine irregular pores; 35 percent gravel, 5 percent cobbles; very strongly acid (pH 4.6); clear wavy boundary

Bw--27 to 54 cm; reddish brown (5YR 4/3) dry, dark reddish brown (5YR 3/3) extremely gravely fine sandy loam; weak fine subangular blocky structure; soft, very friable, non-sticky, non-plastic; weakly smeary; few very fine and fine roots; few fine interstitial pores; 55 percent gravel, 10 percent cobbles; very strongly acid (pH 4.8); gradual irregular boundary

R--54cm; metasedimentary bedrock

TYPE LOCATION: Olympic National Park in Clallam County, Washington, between the Eagle Lakes off the Aurora Ridge Trail.
Latitude-48.047973
Longitude-- -123.902966
Datum--WGS84

RANGE IN CHARACTERISTICS:
Mean annual soil temperature--4 to 8 degrees C
Mean summer soil temperature--6 to 10 degrees C
Depth to restrictive layer--25 to 50 cm from the mineral soil surface

Particle size control section
*Clay content--8 to 17 percent
*Total rock fragment content--40 to 70 percent
*Gravel content--25 to 60 percent
*Cobble content--0 to 30 percent
*Stone content--0 to 20 percent

O horizon
Thickness--0 to 18 cm

A horizon
Hue--10YR or 7.5YR
Value--2 to 4 dry or moist
Chroma--1 to 3 dry or moist
Fine-earth texture--silt loam, loam, sandy loam
Clay content--8 to 17 percent
Total rock fragment content--35 to 60 percent
Gravel content--35 to 50 percent
Cobble content--0 to 10 percent
Reaction--4.5 to 5.5
Thickness--10 to 20 cm

Bw horizon
Hue--5YR or 7.5YR
Value--2 to 4 dry or moist
Chroma--2 to 4 dry or moist
Fine-earth texture--loam, sandy loam
Clay content--4 to 15 percent
Total rock fragment content--45 to 75 percent
Gravel content--35 to 60 percent
Cobble content--0 to 15 percent
Reaction--4.5 to 5.5
Thickness--20 to 40 cm

COMPETING SERIES:
Euchrand--Bw horizons within the particle size control section contain greater than 20 percent clay
Flimflam-lithic contact within 25 to 50 cm of the soil surface

GEOGRAPHIC SETTING:
Elevation--500 to 1100 m
Climate--warm, dry summers; cool, wet winters
Mean annual precipitation--2000 to 3000 mm
Mean annual air temperature--7 to 11 degrees C
Frost-free period--90 to 150 days

GEOGRAPHICALLY ASSOCIATED SOILS:
Skookumcreek--No lithic contact within 150 cm from soil surface; glacial-valley wall landform
Bonjonpass--Contains albic and spodic horizons, no lithic contact within 150 cm from soil surface; glacial-valley wall landform
Charlialakes--lithic contact between 50 and 100 centimeters from soil surface; similar landforms
Mountscott--aquic conditions within 50 centimeters of the mineral soil surface; depressions on similar landforms

DRAINAGE AND SATURATED HYDRAULIC CONDUCTIVITY:
Drainage class--well drained
Saturation in normal years--none
Flooding--none
Ponding--none
Saturated hydraulic conductivity (Ksat)--high or very high throughout

USE AND VEGETATION:
Use--wildlife habitat, recreation
Potential natural vegetation-Pacific silver fir, Douglas-fir, western hemlock, oval-leaf huckleberry, red huckleberry, twinflower, common beargrass, black huckleberry, sidebells wintergreen

DISTRIBUTION AND EXTENT: Olympic Mountains, Washington; MLRA 1; small extent

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

SERIES PROPOSED: Olympic National Park, Clallam County, Washington 2023; name from Bee Creek in Olympic National Park

REMARKS:
Diagnostic horizons and other features in this pedon:
*Particle-size control section--zone from 16 to 54 cm
*Ochric epipedon
*Cambic horizon--zone from 27 to 54 cm

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National Cooperative Soil Survey
U.S.A.