LOCATION VOGEL ORTentative Series
TAXONOMIC CLASS: Loamy-skeletal, isotic, frigid Lithic Haploxerepts
TYPICAL PEDON: Vogel very gravelly ashy sandy loam forested, on a 58 percent planar southeast slope at 5,330 feet elevation. (Colors are for moist soil unless otherwise noted. Soil textures are apparent field textures.)
Oi--0 to 1 inch; slightly decomposed needles, cones and twigs
A--1 to 6 inches; very dark grayish brown (10YR 3/2) very gravelly ashy sandy loam, brown (10YR 5/3) dry; weak fine granular structure; soft, friable, nonsticky and nonplastic; common very fine and fine, few medium roots; few fine irregular pores; 30 percent gravel and, 5 percent cobbles; neutral (pH 7.0); clear wavy boundary. (3 to 6 inches thick)
Bw1--6 to 10 inches; yellowish brown (10YR 5/4) very gravelly ashy sandy loam, very pale brown (10YR 7/4) dry; weak fine subangular blocky structure; soft, friable, slightly sticky and nonplastic; common fine, medium and coarse roots; few fine and medium irregular pores; 40 percent gravel, and 5 percent cobbles; neutral (pH 7.0); clear wavy boundary. (4 to 12 inches thick)
Bw2--10 to 20 inches; yellowish brown (10YR5/4), extremely gravelly ashy sandy loam; very pale brown (10YR 7/4) dry; weak fine subangular blocky structure; soft, friable, slightly sticky and nonplastic; common fine, and few medium and coarse roots; common fine and few medium irregular pores; 50 percent gravel, 15 percent cobbles, and 5 percent stones; neutral (pH 7.0); abrupt irregular boundary. (4 to 10 inches thick)
R--20 inches; fractured argillite
TYPE LOCATION: Baker County, Oregon
Section 3 (NW1/4, NE1/4, NW1/4), T. 15 S., R. 37 E.
Latitude: 44 degrees, 17 minutes, 54 seconds, North
Longitude: 118 degrees, 09 minutes, 56 seconds, West
UTM Zone 11; 4,905,450 northing; 407,010 easting; NAD 27
USGS Quadrangle: Rastus Mountain
RANGE IN CHARACTERISTICS:
Soil Temperature: frigid regime
Mean Annual Soil Temperature: 38 to 45 degrees F
Mean Summer Soil Temperature: 45 to 54 degrees F
Mean Winter Soil Temperature: 32 to 37 degrees F
Soil Moisture: xeric regime, dry 45 to 60 consecutive days in summer
Particle-size Control Section: 10 inches below mineral soil surface to lithic contact
Clay content, average: 3 to 9 percent
Rock fragment content, average: 60 to 95 percent angular or subangular
Diagnostic Horizons and Features:
vitrandic subgroup properties: upper boundary at the mineral surface; 10 to 20 inches thick
Al+1/2Fe (ammonium oxalate): 0.3 to 0.9 percent
P retention: 20 to 40 percent
glass content in the 0.02-2.0mm fraction: 5 to 15 percent
cambic horizon: 6 to 14 inches thick
lithic contact, depth from mineral soil surface: 10 to 20 inches
A horizon:
color, moist: 10YR 3/2, 3/3, 3/4
color, dry: 10YR 5/2, 5/3, 5/4, 5/6
texture: GRV-ASHY-SL
clay content: 5 to 9 percent
rock fragment content: 35 to 55 percent total
gravel: 25 to 45 percent
cobbles: 0 to 10 percent
stones: 0 to 10 percent
reaction: slightly acid to neutral; pH: 6.1 to 7.3
Bw horizon(s):
color, moist: 10YR 3/4, 4/3, 4/4, 5/4
color, dry: 10YR 5/4, 6/2, 6/3, 6/4, 6/6, 7/4
texture: GRV-ASHY-SL, GRX-ASHY-SL, CBX-ASHY-SL
clay content: 6 to 10 percent
rock fragment content: 40 to 85 percent total
gravel: 25 to 65 percent
cobbles: 0 to 30 percent
stones: 0 to 10 percent
reaction: slightly acid to neutral; pH: 6.1 to 7.3
C horizon, in some pedons:
similar to Bw, except massive or single grain and 5 to 15 percent greater total rock fragment content
COMPETING SERIES:
Powderriver: shallow (10 to 20 inches) to a lithic contact (granite); formed in granitic colluvium mixed with a small amount of volcanic ash; moderately acid in subsoil and substratum, rock fragments are subrounded
GEOGRAPHIC SETTING:
Landform: convex backslopes, shoulders and ridges of mountains
Slope gradient: 5 to 90 percent
Parent material: residuum mixed with a small amount of volcanic ash
Lithology: metasedimentary rocks
Elevation: 4,000 to 6,200 feet.
Mean annual precipitation: 20 to 45 inches
Mean annual air temperature: 36 to 43 degrees F
Frostfree period: 25 to 80 days
GEOGRAPHICALLY ASSOCIATED SOILS:
Analulu: on convex backslopes and ridges, moderately deep to bedrock with a minor influence of volcanic ash under Douglas-fir, ponderosa pine or grand fir forest
Bluecanyon: on shoulder slopes and ridges; shallow to argillite bedrock; mollic epipedon with small amount of volcanic ash and loamy-skeletal cambic horizon; under western juniper, curl leaf mountain mahogany, big sagebrush, Idaho fescue, bluebunch wheatgrass and Sandberg's bluegrass.
Eastpine: on ridges, shoulders and backslopes; moderately deep to metasedimentary rock; mollic epipedon with small amount of volcanic ash and loamy-skeletal cambic horizon; under grand fir, Douglas-fir, western larch, Rocky Mountain maple, birchleaf spiraea and pinegrass
Fruitcreek: on planar backslopes with mixed ash mantle, under mountain shrub with widely scattered forest; moderately deep to bedrock
Hondu: on concave backslopes and footslopes, very deep soil with a thin volcanic ash mantle over loamy-skeletal colluvium and residuum from argillite; under grand fir, Douglas-fir, curlleaf mountain mahogany, heartleaf arnica, pinegrass and elk sedge
Ironside: on backslopes and mountain ridges; moderately deep to argillite bedrock; mollic epipedon with a minor amount of volcanic ash and loamy-skeletal cambic horizon; under widely scattered Douglas-fir, western juniper, and ponderosa pine with big sagebrush, mountain snowberry, Idaho fescue, and bluebunch wheatgrass.
Kettlecreek: on backslopes; deep to argillite bedrock; loamy-skeletal colluvium with a minor amount of volcanic ash in surface horizons; under Douglas-fir, ponderosa pine, birchleaf spiraea and common snowberry
Kingbolt: on ridges, benches and shoulder slopes, moderately deep to bedrock with a thick volcanic ash mantle under grand fir and Douglas-fir forest;
McWillar: on backslopes; deep to argillite bedrock; thick volcanic ash mantle over loamy-skeletal argillic horizon; under grand fir, birchleaf spirea, pussytoes and pinegrass
DRAINAGE AND PERMEABILITY:
Drainage: well drained
Permeability: moderately rapid
USE AND VEGETATION:
Use: timber production, watershed, wildlife habitat and recreation
Native vegetation: Douglasfir, ponderosa pine, grand fir, mountain snowberry, birchleaf spiraea, Rocky Mountain maple, Oregon grape holly, western hawkweed, arrowleaf balsamroot, lupines, pinegrass and elk sedge.
Plant Association: ABGR/CARU (grand fir/pinegrass); may include: ABGR/ ACGL (grand fir/Rocky Mountain maple), PSME/SYAL (Douglas-fir/common snowberry) or PSME/CARU (Douglas-fir/pinegrass)
DISTRIBUTION AND EXTENT:
Distribution: MLRA 43c, Blue Mountains of northeast Oregon.
Extent: small
MLRA SOIL SURVEY REGIONAL OFFICE (MO) RESPONSIBLE: Portland, Oregon
SERIES PROPOSED: Wallowa-Whitman National Forest, 2008. Name is from a reservoir.
REMARKS: Diagnostic horizons and features recognized in this pedon are:
ochric epipedon: 1 to 6 inches; A horizon
cambic horizon: 6 to 20 inches; Bw1, Bw2 horizons
vitrandic subgroup feature: 1 to 20 inches; A, Bw1, Bw2 horizons
particle-size control section: 11 to 20 inches; Bw2 horizon
base saturation by ammonium acetate (NH4OAc): assumed to be greater than 60 percent from 10 inches to a lithic contact