PEDON DESCRIPTION

Print Date: Apr 26 2024	Country:
Description Date: Jul 31 2003	State: Washington
Describer: Chris Miller	County: Spokane
Site ID: S2003WA063001	MLRA:
Soil Survey Area: WA063 -- Spokane County, Washington
Pedon ID: S2003WA063001	Map Unit:
Quad Name:
Lab Source ID:	Std Latitude: 47.8794441
Lab Pedon #: 03N0924	Std Longitude: -117.0894470
User Transect ID:
Soil Name as Described/Sampled: VAY
Classification:
Soil Name as Correlated: VAY
Classification: Ashy over loamy-skeletal, amorphic over isotic, frigid Humic Udivitrands
Pedon Type: taxadjunct to the series
Pedon Purpose: research site
Taxon Kind: series
Associated Soils:
Physiographic Division:	Primary Earth Cover:
Physiographic Province:	Secondary Earth Cover:
Physiographic Section:	Vegetation: bride's bonnet, common beargrass, Engelmann spruce, grand fir, subalpine fir, western larch
State Physiographic Area:	Parent Material: volcanic ash over colluvium derived from granite
Local Physiographic Area: QUARTZ PEAK	Bedrock Kind: Granite
Geomorphic Setting: on mountainflank, upper third of None Assigned	Bedrock Depth: 102 centimeters
Upslope Shape:	Bedrock Hardness: moderately coherent cemented
Cross Slope Shape:	Bedrock Fracture Interval:
Particle Size Control Section:	Surface Fragments:
Description origin: NASIS	Description database: SSRO_Northwest

Diagnostic Features:

umbric epipedon 5 to 38 cm.
andic soil properties 5 to 61 cm.
cambic horizon 38 to 61 cm.

Top Depth (cm)	Bottom Depth (cm)	Restriction Kind	Restriction Hardness
102	152	bedrock, lithic	Moderately coherent

Cont. Site ID: S2003WA063001 Pedon ID: S2003WA063001

Slope (%) Elevation (meters) Aspect (deg) MAAT (C) MSAT (C) MWAT (C) MAP (mm) Frost-Free Days Drainage Class Slope Length (meters) Upslope Length (meters)

30.0 1,463.0 270

well

O--0 to 5 centimeters (0.0 to 2.0 inches); .

A--5 to 10 centimeters (2.0 to 3.9 inches); very dark brown (10YR 2/2) broken face loam, dark grayish brown (10YR 4/2) broken face, dry; 10 percent clay; moderate very fine granular structure; soft, very friable, nonsticky, nonplastic; many very fine roots throughout and many fine roots throughout; many very fine moderate-continuity irregular pores; 20 percent nonflat angular indurated 2 to 20-millimeter Andesite fragments; gradual smooth boundary. Lab sample # 03N04760

Bw1--10 to 25 centimeters (3.9 to 9.8 inches); very dark grayish brown (10YR 3/2) broken face gravelly loam, dark grayish brown (10YR 4/2) broken face, dry; 10 percent clay; moderate very fine granular structure; soft, very friable, nonsticky, nonplastic; many very fine roots throughout and many fine roots throughout; many very fine moderate-continuity irregular pores; 20 percent nonflat angular indurated 2 to 20-millimeter Andesite fragments; gradual smooth boundary. Lab sample # 03N04761

Bw2--25 to 38 centimeters (9.8 to 15.0 inches); very dark grayish brown (10YR 3/2) broken face gravelly loam, brown (10YR 4/3) broken face, dry; 10 percent clay; weak fine subangular blocky structure; soft, very friable, nonsticky, nonplastic; many very fine roots throughout and many fine roots throughout and few coarse roots throughout; many very fine moderate-continuity irregular pores; 15 percent nonflat angular indurated 2 to 20-millimeter Andesite fragments; gradual smooth boundary. Lab sample # 03N04762

Bw3--38 to 48 centimeters (15.0 to 18.9 inches); very dark grayish brown (10YR 3/2) broken face fine sandy loam, dark yellowish brown (10YR 4/4) broken face, dry; 7 percent clay; weak fine subangular blocky structure; soft, very friable, nonsticky, nonplastic; few medium roots throughout and few fine roots throughout; many very fine moderate-continuity irregular pores; 10 percent nonflat angular indurated 2 to 20-millimeter Andesite fragments; gradual smooth boundary. Lab sample # 03N04763

2BC--48 to 61 centimeters (18.9 to 24.0 inches); dark yellowish brown (10YR 4/4) broken face gravelly loam, pale brown (10YR 6/3) broken face, dry; 8 percent clay; weak fine subangular blocky structure; slightly hard, friable, nonsticky, nonplastic; few medium roots throughout and few fine roots throughout; many very fine moderate-continuity irregular pores; 20 percent nonflat angular indurated 2 to 20-millimeter Andesite fragments; gradual smooth boundary. Lab sample # 03N04764

2C1--61 to 81 centimeters (24.0 to 31.9 inches); dark yellowish brown (10YR 4/6) broken face very gravelly sandy loam, yellowish brown (10YR 5/6) broken face, dry; 8 percent clay; massive; slightly hard, firm, nonsticky, nonplastic; few very fine roots throughout and few coarse roots throughout; many very fine moderate-continuity irregular pores; 5 percent nonflat angular indurated 75 to 250-millimeter Andesite fragments and 10 percent nonflat angular indurated 20 to 75-millimeter Andesite fragments and 20 percent nonflat angular indurated 2 to 20-millimeter Andesite fragments; gradual smooth boundary. Lab sample # 03N04765

2C2--81 to 109 centimeters (31.9 to 42.9 inches); yellowish brown (10YR 5/4) broken face gravelly fine sandy loam, brownish yellow (10YR 6/6) broken face, dry; 8 percent clay; massive; nonsticky, nonplastic; few very fine roots throughout; many very fine moderate-continuity irregular pores; 30 percent nonflat angular indurated 2 to 20-millimeter Andesite fragments; gradual smooth boundary.

Cr--109 to 134 centimeters (42.9 to 52.8 inches); bedrock; .

* Method Codes *
Code	Description
7A1a1	X-ray Diffraction, Thin Film on Glass, Resin Pretreatment
7B1a2	Optical Analysis, Glass Count

* Preparation Codes *
Code	Description / List of Methods
Sjj	The air-dried soil passing a No. 10-mesh sieve
	7A1a1, 7B1a2

* Instrument Sets *
Instrument Set Name	List of Methods
Instrument Not Specified	7B1a2
X-ray diffractometer	7A1a1

* Analyzed Size Fractions *
Size Fraction	List of Methods
<0.002 mm	7A1a1
0.02-0.05 mm	7B1a2

Slope (%)	Elevation (meters)	Aspect (deg)	MAAT (C)	MSAT (C)	MWAT (C)	MAP (mm)	Frost-Free Days	Drainage Class	Slope Length (meters)	Upslope Length (meters)
30.0	1,463.0	270						well