IDENTIFIERS

Current Taxon Name (Soil Name): Alpon

OSD

Series Extent

User Site ID: S2013ID007002

User Pedon ID: S2013ID007002

Vegetation Plot ID: S2013ID007002

User Site Association ID: ID713_sites_v1backup_ID713_sites_v1_backup20240307

Lab Information:

Certified Lab Pedon Description - yes

Lab Source ID - KSSL

Lab Pedon # - 13N97442

NCSS Pedon Lab Data NASIS Record ID - 73202

Print Date: 4/28/2024

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: 42.4803410

Std. Longitude: -111.5275580

Datum: WGS84

State: Idaho

County: ID007—Bear Lake

MLRA: 47—Wasatch and Uinta Mountains

Non-MLRA Soil Survey Area: ID713—Caribou National Forest, Idaho and Wyoming

PEDON

Describers Name: Kara Green

Current Taxonomic Class: Fine-loamy, mixed, superactive Typic Palecryolls

Current Taxon Kind: family

Pedon Type: classifies to current taxon name, full description

Pedon Purpose: laboratory sampling site

Pedon Record Orgin: NASIS

Correlated Information:

Soil Name - Alpon

PSC - 66 to 106 cm.

Classificaton Date - 3/31/2015

Classifier - Kara Green

Soil Taxonomic Edition - twelfth edition

Moisture Class - udic

Moisture Subclass - typic

Sampled As Information:

Soil Name - Alpon

Taxonomic Class - Fine-loamy, mixed, superactive Typic Palecryolls

Taxon Kind - family

PSC - 66 to 106 cm.

Classificaton Date - 8/2/2012

Classifier - Kara Green

Soil Taxonomic Edition - eleventh edition

Moisture Class - udic

Moisture SUBClass - typic

Dynamic Soil Properties:

Pedoderm Loose Cover Indicator - no

Hydric: no

SITE

Parent Material: colluvium derived from quartzite

Landscape: mountains

Landform: mountain slope

Geomorphic Component Mountains: mountainflank

Hill Slope Profile: backslope

Slope Complexity: simple

Slope Shape Across: linear

Slope Shape Down: concave

Drainage Class: well

Surface Fragments:

Benchmark Soil?: no

VEGETATION

Other Vegetative Class: SC760 - subalpine fir/mountain sweetroot—Forest Habitat Types of E. Idaho - W. Wyoming (GTR-INT-144)

Vegplot Text Note(s): Subalpine fir tree in plot measured 59 years old @ B.H. 2.7' circ @ B.H. 55.5' tall Lodgepole pine tree in plot measured 74 years old @ B.H. 3.14' circ @B.H. 64.5' tall

SITE OBSERVATION

Observation Date: 8/2/2012 (actual site observation date)

Data Collector: Kara Green

Surface Cover Properties:

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
ABLA PICO PIEN POTR5 PSME CEVE LOIN5 ROWO RUPA SYOR2 VAME BRMA4 CARU ARCO9 CHAME2 EUEN FRAGA GEVI2 OSCH CASTI2	Abies lasiocarpa Pinus contorta Picea engelmannii Populus tremuloides Pseudotsuga menziesii Ceanothus velutinus Lonicera involucrata Rosa woodsii Rubus parviflorus Symphoricarpos oreophilus Vaccinium membranaceum Bromus marginatus Calamagrostis rubescens Arnica cordifolia Chamerion Eucephalus engelmannii Fragaria Geranium viscosissimum Osmorhiza chilensis Castilleja	subalpine fir lodgepole pine Engelmann spruce quaking aspen Douglas-fir snowbrush ceanothus twinberry honeysuckle Woods' rose thimbleberry mountain snowberry thinleaf huckleberry mountain brome pinegrass heartleaf arnica fireweed Engelmann's aster strawberry sticky purple geranium — Indian paintbrush	tree tree tree tree tree shrub/vine shrub/vine shrub/vine shrub/vine shrub/vine shrub/vine grass/grasslike grass/grasslike forb forb forb forb forb forb —	15 15 2 10 1 2 1 1 2 1 — 5 20 5 2 5 2 5 8 2	overstory overstory overstory overstory overstory — — — — — — — — — — — — — — —

Pedon Diagnostic Features
Feature Kind	Feature Depth L-H	Feature Thickness L-RV-H
	cm
mollic epipedon argillic horizon	2—27 66—	—25— —-

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
22	—	—	2396	—	80	—	860	—	—	—	—	—	—	—	—	—	—	—	—

Oi—0 to 2 centimeters (0.0 to 0.8 inches); moderately decomposed plant material; fragments; noneffervescent, by hcl, 1n.; observed in pit, small

A—2 to 27 centimeters (0.8 to 10.6 inches); very dark grayish brown (10YR 3/2) broken face loam; 40 percent sand; 13 percent clay; weak fine granular structure; soft, very friable, nonsticky, nonplastic; 5 percent by volume nonflat indurated 2-?-75 millimeter quartzite fragments; noneffervescent, by hcl, 1n; slightly acid, pH 6.4, pH indicator solutions; clear smooth boundary. Lab sample # 13N13183; observed in pit, small

E—27 to 66 centimeters (10.6 to 26.0 inches); dark yellowish brown (10YR 4/4) broken face gravelly loam; 50 percent sand; 12 percent clay; weak fine subangular blocky structure; slightly hard, very friable, nonsticky, nonplastic; 5 percent by volume nonflat indurated 75-?-250 millimeter quartzite fragments and 10 percent by volume nonflat indurated 2-?-75 millimeter quartzite fragments; noneffervescent, by hcl, 1n; clear wavy boundary. Lab sample # 13N13184; observed in pit, small

E/Bt—66 to 90 centimeters (26.0 to 35.4 inches); dark yellowish brown (10YR 4/6) broken face gravelly sandy clay loam; 65 percent sand; 26 percent clay; moderate medium subangular blocky structure; slightly hard, friable, moderately sticky, moderately plastic; 15 percent skeletans on all faces of peds; 2 percent by volume nonflat indurated 75-?-250 millimeter quartzite fragments and 15 percent by volume nonflat indurated 2-?-75 millimeter quartzite fragments; noneffervescent, by hcl, 1n; - 30 - percent of the total horizon; moderately acid, pH 5.8, pH indicator solutions; clear wavy boundary. Lab sample # 13N13185; observed in pit, small

E/Bt—66 to 90 centimeters (26.0 to 35.4 inches); dark yellowish brown (10YR 4/4) broken face gravelly loam; 50 percent sand; 12 percent clay; weak fine subangular blocky structure; slightly hard, friable, nonsticky, nonplastic; 2 percent by volume nonflat indurated 75-?-250 millimeter quartzite fragments and 15 percent by volume nonflat indurated 2-?-75 millimeter quartzite fragments; noneffervescent, by hcl, 1n; - 70 - percent of the total horizon; moderately acid, pH 5.8, pH indicator solutions; clear wavy boundary. Lab sample # 13N13185; observed in pit, small

Bt1—90 to 110 centimeters (35.4 to 43.3 inches); dark yellowish brown (10YR 4/6) broken face gravelly sandy clay loam; 65 percent sand; 26 percent clay; moderate medium subangular blocky structure; hard, firm, moderately sticky, moderately plastic; 10 percent skeletans on all faces of peds and 10 percent clay films on all faces of peds and 10 percent clay bridges on surfaces along pores; 10 percent by volume nonflat indurated 75-?-250 millimeter quartzite fragments and 20 percent by volume nonflat indurated 2-?-75 millimeter quartzite fragments; noneffervescent, by hcl, 1n; gradual wavy boundary. Lab sample # 13N13186; observed in pit, small

Bt2—110 to 152 centimeters (43.3 to 59.8 inches); dark yellowish brown (10YR 4/6) broken face very cobbly sandy clay loam; 65 percent sand; 24 percent clay; weak coarse subangular blocky parts to moderate medium subangular blocky structure; hard, friable, moderately sticky, moderately plastic; 2 percent skeletans on all faces of peds and 5 percent clay films on all faces of peds and 10 percent clay bridges on surfaces along pores; 15 percent by volume nonflat indurated 75-?-250 millimeter quartzite fragments and 20 percent by volume nonflat indurated 2-?-75 millimeter quartzite fragments; noneffervescent, by hcl, 1n. Lab sample # 13N13187; observed in pit, small