PEDON DESCRIPTION

Print Date: Apr 19 2024	Country:
Description Date: Aug 12 2003	State: Washington
Describer: Toby Rodgers	County: Okanogan
Site ID: 03-RPM-05	MLRA:
Soil Survey Area: WA749 -- Okanogan National Forest Area, Washington
Pedon ID: 03WA047001	Map Unit:
Quad Name:
Lab Source ID: SSL	Std Latitude: 48.7205544
Lab Pedon #: 04N0047	Std Longitude: -120.6586075
User Transect ID:
Soil Name as Described/Sampled: Vitrandic Dystrocryepts
Classification:
Soil Name as Correlated: Vitrandic Dystrocryepts
Classification: Vitrandic Dystrocryepts
Pedon Type:
Pedon Purpose: research site
Taxon Kind: taxon above family
Associated Soils:
Physiographic Division:	Primary Earth Cover:
Physiographic Province:	Secondary Earth Cover:
Physiographic Section:	Vegetation: grouse whortleberry, subalpine fir, subalpine larch
State Physiographic Area:	Parent Material: volcanic ash over glacial till and colluvium
Local Physiographic Area: HART'S PASS	Bedrock Kind: Metasedimentary rock
Geomorphic Setting: on footslope of mountaintop of arete	Bedrock Depth: 152 centimeters
Upslope Shape:	Bedrock Hardness: strongly coherent cemented
Cross Slope Shape:	Bedrock Fracture Interval:
Particle Size Control Section:	Surface Fragments:
Description origin: NASIS	Description database: KSSL

Diagnostic Features:

? to ? cm.

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

Cont. Site ID: 03-RPM-05 Pedon ID: 03WA047001

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

12.0 1,977.0 270

well

O--0 to 3 centimeters (0.0 to 1.2 inches); slightly decomposed plant material; .

A1--3 to 15 centimeters (1.2 to 5.9 inches); black (10YR 2/1) broken face ashy fine sandy loam, dark gray (10YR 4/1) broken face, dry; 10 percent clay; weak very fine granular structure; soft, very friable, nonsticky, nonplastic; many very fine roots throughout and few medium roots throughout and many fine roots throughout and few coarse roots throughout; many very fine moderate-continuity irregular and many fine moderate-continuity irregular pores; 5 percent nonflat angular indurated 2 to 20-millimeter unspecified fragments; gradual smooth boundary. Lab sample # 04N00297

A2--15 to 38 centimeters (5.9 to 15.0 inches); very dark brown (10YR 2/2) broken face ashy fine sandy loam, dark grayish brown (10YR 4/2) broken face, dry; 10 percent clay; weak medium subangular blocky structure; soft, very friable, nonsticky, nonplastic; many very fine roots throughout and few medium roots throughout and many fine roots throughout and few coarse roots throughout; many very fine moderate-continuity irregular pores; 5 percent nonflat angular indurated 2 to 20-millimeter unspecified fragments; gradual smooth boundary. Lab sample # 04N00298

2Bw1--38 to 61 centimeters (15.0 to 24.0 inches); dark brown (10YR 3/3) broken face very gravelly sandy loam, yellowish brown (10YR 5/4) broken face, dry; 7 percent clay; moderate medium subangular blocky structure; soft, very friable, nonsticky, nonplastic; many very fine roots throughout and many medium roots throughout; few very fine moderate-continuity irregular pores; 5 percent nonflat angular indurated 20 to 250-millimeter unspecified fragments and 40 percent nonflat angular indurated 2 to 20-millimeter unspecified fragments; gradual smooth boundary. Lab sample # 04N00299

2Bw2--61 to 81 centimeters (24.0 to 31.9 inches); brown (10YR 4/3) broken face very gravelly coarse sandy loam, pale brown (10YR 6/3) broken face, dry; 8 percent clay; weak medium subangular blocky structure; slightly hard, friable, nonsticky, nonplastic; many fine roots throughout; few fine moderate-continuity irregular pores; 15 percent nonflat angular indurated 20 to 250-millimeter unspecified fragments and 55 percent nonflat angular indurated 2 to 20-millimeter unspecified fragments; gradual smooth boundary. Lab sample # 04N00300

Cd--81 to 106 centimeters (31.9 to 41.7 inches); very dark grayish brown (2.5Y 3/2) broken face loamy coarse sand, light brownish gray (2.5Y 6/2) broken face, dry; massive; . Lab sample # 04N00301

* Method Codes *
Code	Description
7A1a1	X-ray Diffraction, Thin Film on Glass, Resin Pretreatment
7B1a2	Optical Analysis, Full Grain 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
0.1-0.25 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)
12.0	1,977.0	270						well