IDENTIFIERS

Current Taxon Name (Soil Name): Hudnut

OSD

Series Extent

User Site ID: S1999WA063007

User Pedon ID: S1999WA063007

Vegetation Plot ID: S1999WA063007

Lab Information:

Certified Lab Pedon Description - no

Lab Source ID - Lincoln

Lab Pedon # - 00P0800

NCSS Pedon Lab Data NASIS Record ID - 12298

Print Date: 4/22/2025

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: 47.5636101

Std. Longitude: -117.6490250

Datum: WGS84

Township: 26N

Range: 41E

Section: 20

PLSS Details: About 100 feet north and 600 feet west of the southeast corner

Location Description: About 7 miles northwest of Airway Heights, WA; on very closely spaced forested mounds on a narrow 3-15% slope terrace above a steep (and frigid) terrace escarpment (3146 mu).

State: Washington

County: WA063—Spokane

MLRA: 9—Palouse and Nez Perce Prairies

Non-MLRA Soil Survey Area: WA063—Spokane County, Washington

7.5 Minute USGS Quad: 47117-F6—Deep Creek, Washington

PEDON

Describers Name: Dean White

Current Taxonomic Class: Coarse-loamy, mixed, superactive, mesic Typic Haploxerepts

Current Taxon Kind: series

Pedon Type: not classified to current taxon name

Pedon Purpose: soil survey inventory

Pedon Record Orgin: NASIS

Correlated Information:

Soil Name - Hudnut

PSC - 28 to 103 cm.

Classificaton Date - 2/10/2012

Moisture Class - xeric

Moisture Subclass - typic

Sampled As Information:

Soil Name - Hudnut

Classificaton Date - 10/13/1999

Dynamic Soil Properties:

Pedoderm Loose Cover Indicator - no

Hydric: no

SITE

Parent Material: coarse-silty volcanic ash and/or coarse-silty loess and/or coarse-loamy outwash derived from basalt

Landscape: upland

Landform: terrace

Geomorphic Component Terraces: tread

Hill Slope Profile: backslope

Slope Position: middle third

Slope Complexity: simple

Slope Shape Across: convex

Slope Shape Down: convex

Runoff: negligible

Drainage Class: well

Flooding: none flooding

Ponding: none ponding

Surface Fragments:

Benchmark Soil?: no

VEGETATION

SITE OBSERVATION

Observation Date: 10/13/1999 (actual site observation date)

Air Photo ID: 19N/K-16

Plant Association Name: PIPO/PSME/SYAL

Surface Cover Properties:

Site Obs. Cover Kind 1 - tree cover

Site Obs. Cover Kind 2 - other grass/herbaceous cover

Pedoderm Loose Cover Indicator - no

Drained? - no

Bedded Soil? - no

Forest Plantation? - no

Current Weather - sunny

Current Air Temp - 13

Vegetation Plot Plants
Plant Symbol	Scientific Name	National Vernacular Name	Plant Type Group	Canopy Cover %	Vegetation Stata Level
PIPO PSME SYAL FEID	Pinus ponderosa Pseudotsuga menziesii Symphoricarpos albus Festuca idahoensis	ponderosa pine Douglas-fir common snowberry Idaho fescue	— — — —	— — — —	— — — —

Pedon Diagnostic Features
Feature Kind	Feature Depth L-H	Feature Thickness L-RV-H
	cm
ochric epipedon cambic horizon	0—23 23—66	—23— —-

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
3.5	92	61	716	—	338	432	—	150	8	—	—	—	—	—	—	—	7938	Spokane Airport	FOCS apprvd

Oi—0 to 3 centimeters (0.0 to 1.2 inches); slightly decomposed plant material; low excavation difficulty; fragments.; observed in shovel slice

A—3 to 23 centimeters (1.2 to 9.1 inches); brown (10YR 5/3) exterior, very dark grayish brown (10YR 3/2) crushed, moist; loam; 40 percent sand; 48 percent silt; 12 percent clay; moderate medium subangular blocky, and moderate fine subangular blocky structure; slightly hard, very friable, slightly sticky, slightly plastic; low toughness; moderate permeability; moderate excavation difficulty; 3.5 very fine roots throughout and 0.5 medium roots throughout and 0.5 fine roots throughout; 1.0 very fine low-continuity interstitial and 3.0 very fine low-continuity dendritic tubular pores; 3 percent by volume nonflat subangular indurated 5-10-12 millimeter basalt fragments and 5 percent by volume nonflat subrounded indurated 2-4-5 millimeter basalt fragments; noneffervescent, by hcl, 1n; neutral, pH 6.6, hellige-truog; gradual smooth boundary.; observed in shovel slice

Bw1—23 to 38 centimeters (9.1 to 15.0 inches); yellowish brown (10YR 5/4) crushed, dark grayish brown (10YR 4/2) crushed, moist; silt loam; 35 percent sand; 54 percent silt; 12 percent clay; moderate coarse subangular blocky parts to moderate medium subangular blocky structure; low toughness; moderate permeability; moderate excavation difficulty; 5 percent by volume nonflat subrounded indurated 2-4-5 millimeter basalt fragments; noneffervescent, by hcl, 1n.; observed in auger, bucket

Bw2—38 to 58 centimeters (15.0 to 22.8 inches); light yellowish brown (10YR 6/4) crushed, brown (10YR 4/3) crushed, moist; silt loam; 35 percent sand; 55 percent silt; 10 percent clay; moderate coarse subangular blocky parts to moderate medium subangular blocky structure; low toughness; moderate permeability; moderate excavation difficulty; 5 percent by volume nonflat subrounded indurated 2-4-5 millimeter basalt fragments; noneffervescent, by hcl, 1n.; observed in auger, bucket

Bw3—58 to 66 centimeters (22.8 to 26.0 inches); light yellowish brown (10YR 6/4) crushed, brown (10YR 4/3) crushed, moist; gravelly loam; 43 percent sand; 44 percent silt; 13 percent clay; moderate coarse subangular blocky parts to moderate medium subangular blocky structure; low toughness; moderate permeability; moderate excavation difficulty; 4 percent by volume nonflat subangular indurated 12-18-25 millimeter basalt fragments and 13 percent by volume nonflat subrounded indurated 2-4-5 millimeter basalt fragments; noneffervescent, by hcl, 1n.; observed in auger, bucket