IDENTIFIERS

Current Taxon Name (Soil Name): Pokegema

OSD

Series Extent

User Site ID: S1966OR035001

User Pedon ID: S1966OR035001

Vegetation Plot ID: S1966OR035001

Lab Information:

Certified Lab Pedon Description - yes

Lab Source ID - SSL

Lab Pedon # - 40A0836

NCSS Pedon Lab Data NASIS Record ID - 33895

Print Date: 11/24/2024

LOCATION

Location In Web Soil Survey

AOI is roughly a square mile and pedon is marked in the center.

Location in SoilWeb

Location in Google Maps

Std. Latitude: 42.1266800

Std. Longitude: -122.1719000

Datum: WGS84

Township: 40S

Range: 5E

Section: 1

PLSS Details: about 35 feet south of the northeast corner

Location Description: about 1287 feet north of E 1/4 corner section 1, about 440 feet northwest of small State Park on highway 66, about 12 miles west of Keno

Map Unit: 147C—Pokegema-Woodcock complex, 1 to 12 percent slopes, mlra 21

State: Oregon

County: OR035—Klamath

MLRA: 21—Klamath and Shasta Valleys and Basins

Non-MLRA Soil Survey Area: OR632—Jackson County Area, Oregon, Parts of Jackson and Klamath Counties

7.5 Minute USGS Quad: 42122-B2—Surveyor Mountain, Oregon

PEDON

Describers Name: J. S. Cahoon

Current Taxonomic Class: Medial, amorphic, frigid Humic Haploxerands

Current Taxon Kind: series

Pedon Type: OSD pedon

Pedon Purpose: full pedon description

Pedon Record Orgin: Converted from PDP 3.x

Correlated Information:

Soil Name - Pokegema (flagged as OSD)

PSC - 1 to 101 cm.

Classificaton Date - 7/21/2017

Moisture Class - xeric

Moisture Subclass - typic

Sampled As Information:

Soil Name - POKEGEMA

Classificaton Date - 5/16/1966

Dynamic Soil Properties:

Pedoderm Loose Cover Indicator - no

Hydric: no

SITE

Parent Material: mudflow deposits containing andesitic rocks and ash

Landscape: lava plateau

Landform: plateau

Geomorphic Component Hills: interfluve

Hill Slope Profile: summit

Slope Complexity: simple

Slope Shape Across: linear

Slope Shape Down: linear

Drainage Class: well

Bedrock: andesite at 133cm

Surface Fragments:

Benchmark Soil?: no

VEGETATION

SITE OBSERVATION

Observation Date: 5/16/1966 (actual site observation date)

Data Collector: J.S. Cahoon

Surface Cover Properties:

Site Obs. Cover Kind 1 - tree cover

Site Obs. Cover Kind 2 - intermixed conifers and hardwoods

Pedoderm Loose Cover Indicator - no

Drained? - no

Bedded Soil? - no

Forest Plantation? - no

Vegetation Plot Plants
Plant Symbol	Scientific Name	National Vernacular Name	Plant Type Group	Canopy Cover %	Vegetation Stata Level
CAGA3 CEPR	Carex garberi Ceanothus prostratus	elk sedge prostrate ceanothus	— —	— —	— —

Pedon Restrictions
Kind	Hardness	Restriction Depth L-H	Restriction Thickness L-RV-H
		cm
bedrock, lithic	indurated	133 -	—

Pedon Diagnostic Features
Feature Kind	Feature Depth L-H	Feature Thickness L-RV-H
	cm
andic soil properties mollic epipedon volcanic glass cambic horizon lithic contact	1—133 1—67 1—133 67—133 133—	—132— —66— —132— —66— —-

Setting and Climate
Slope	Slope Length USLE	Upslope Length	Elev.	Corr. Elev	Aspect	MAP	REAP	FFD	MAAT	MSAT	MWAT	MAST	MSST	MWST	MFFP	PE Index	Climate Station ID	Climate Station Name	Climate Station Type
%	m				degrees	mm	mm		C						mm
2	—	—	1342	—		762	—	—	4.4	12.8	—	—	—	—	—	—	—	—	—

Oi—0 to 1 centimeters (0.0 to 0.4 inches); slightly decomposed plant material; fragments. Lab sample # 40A06321; moist when described;. L and F layers, not sampled

A1—1 to 6 centimeters (0.4 to 2.4 inches); brown (7.5YR 4/2), dark reddish brown (5YR 2/2), moist; medial loam; weak very fine granular structure; soft, very friable, nonsticky, nonplastic; 21.0 very fine roots; 21.0 very fine interstitial pores; 3 percent by volume nonflat subrounded very strongly coherent cemented 5-40-75 millimeter andesite fragments and 3 percent by volume nonflat subrounded very strongly coherent cemented 75-160-250 millimeter andesite fragments and 4 percent by volume nonflat subrounded very strongly coherent cemented 2-4-5 millimeter andesite fragments; slightly acid, pH 6.5, bromthymol blue; abrupt smooth boundary. Lab sample # 40A06322; moist when described;

A2—6 to 21 centimeters (2.4 to 8.3 inches); reddish brown (5YR 4/3), dark reddish brown (5YR 3/3), moist; medial loam; weak very fine granular structure; soft, very friable, slightly sticky, slightly plastic; 21.0 very fine roots and 8.0 coarse roots; 21.0 fine tubular pores; 3 percent by volume nonflat subrounded very strongly coherent cemented 5-40-75 millimeter andesite fragments and 3 percent by volume nonflat subrounded very strongly coherent cemented 75-160-250 millimeter andesite fragments and 4 percent by volume nonflat subrounded very strongly coherent cemented 2-4-5 millimeter andesite fragments; slightly acid, pH 6.5, bromthymol blue; gradual wavy boundary. Lab sample # 40A06323; moist when described;

BA—21 to 41 centimeters (8.3 to 16.1 inches); reddish brown (5YR 5/3), dark reddish brown (5YR 3/3), moist; medial loam; weak medium subangular blocky parts to moderate fine granular structure; slightly hard, friable, moderately sticky, slightly plastic; 21.0 fine roots and 8.0 coarse roots; 21.0 very fine tubular pores; 3 percent by volume nonflat subrounded very strongly coherent cemented 5-40-75 millimeter andesite fragments and 3 percent by volume nonflat subrounded very strongly coherent cemented 75-160-250 millimeter andesite fragments and 4 percent by volume nonflat subrounded very strongly coherent cemented 2-4-5 millimeter andesite fragments; slightly acid, pH 6.4, bromthymol blue; clear smooth boundary. Lab sample # 40A06324; moist when described;

Bw1—41 to 67 centimeters (16.1 to 26.4 inches); reddish brown (5YR 5/3), dark reddish brown (5YR 3/3), moist; gravelly medial loam; weak fine subangular blocky, and weak medium subangular blocky structure; hard, firm, moderately sticky, moderately plastic; 21.0 fine roots and 8.0 coarse roots; 21.0 very fine tubular pores; 3 percent by volume nonflat subrounded very strongly coherent cemented 75-160-250 millimeter andesite fragments and 7 percent by volume nonflat subrounded very strongly coherent cemented 5-40-75 millimeter andesite fragments and 8 percent by volume nonflat subrounded very strongly coherent cemented 2-4-5 millimeter andesite fragments; slightly acid, pH 6.3, bromthymol blue; gradual smooth boundary. Lab sample # 40A06325; moist when described;. estimated 25 percent by volume of weathered andesite pebbles; gravel layer at 60 to 67 cm, may be a stone line

Bw2—67 to 97 centimeters (26.4 to 38.2 inches); brown (7.5YR 5/3), dark reddish brown (5YR 3/3), moist; gravelly medial clay loam; moderate medium subangular blocky structure; hard, firm, moderately sticky, moderately plastic; 21.0 fine roots and 8.0 coarse roots; 21.0 very fine tubular pores; 5 percent by volume nonflat subangular very strongly coherent cemented 75-160-250 millimeter andesite fragments and 7 percent by volume nonflat subrounded very strongly coherent cemented 5-40-75 millimeter andesite fragments and 8 percent by volume nonflat subrounded very strongly coherent cemented 2-4-5 millimeter andesite fragments; slightly acid, pH 6.1, bromthymol blue; clear wavy boundary. Lab sample # 40A06326; moist when described;

Bw3—97 to 133 centimeters (38.2 to 52.4 inches); reddish brown (5YR 4/3), reddish brown (5YR 4/4) and dark reddish brown (5YR 3/3), moist; gravelly medial clay; massive; hard, firm, moderately sticky, moderately plastic; 0.5 fine roots and 0.5 coarse roots; 3.0 very fine tubular pores; 5 percent by volume nonflat subangular very strongly coherent cemented 75-160-250 millimeter andesite fragments and 9 percent by volume nonflat subrounded very strongly coherent cemented 2-4-5 millimeter andesite fragments and 10 percent by volume nonflat subrounded very strongly coherent cemented 5-40-75 millimeter andesite fragments; moderately acid, pH 5.8, bromthymol blue; abrupt wavy boundary. Lab sample # 40A06327; moist when described;

2R—133 to 158 centimeters (52.4 to 62.2 inches);, dark reddish brown (5YR 2/2) and yellowish red (5YR 5/8), moist; bedrock; fragments. Lab sample # 40A06328; moist when described;. weathered andesite rock