LOCATION HAFLINGER               OR

Established Series
WRP/AON/TDT
02/2025

HAFLINGER SERIES

Landscape--western Cascade mountains
Landform--low stream terraces, flood plains
Slope--0 to 5 percent
Parent material--coarse-textured alluvium derived from volcanic rocks
Mean annual precipitation--about 1800 mm
Mean annual air temperature--about 10 degrees C
Depth class--very deep
Drainage class--somewhat excessively drained
Soil moisture regime--udic
Soil temperature regime--mesic
Soil moisture subclass--typic

TAXONOMIC CLASS: Sandy-skeletal, mixed, mesic Entic Humudepts

TYPICAL PEDON: Haflinger cobbly loam at an elevation of 354 m

A1--0 to 20 cm; cobbly loam, dark grayish brown (10YR 4/2) dry, very dark brown (10YR 2/2) moist; moderate very fine granular structure; slightly hard, friable, slightly sticky and slightly plastic; many fine roots; many very fine irregular pores; 10 percent gravel and 20 percent cobbles; moderately acid (pH 6.0); clear smooth boundary

A2--20 to 43 cm; cobbly loam, brown (10YR 5/3) dry, dark brown (10YR 3/3) moist; weak very fine granular structure; soft, very friable, nonsticky and nonplastic; common fine roots; many very fine irregular pores; 10 percent gravel and 20 percent cobbles; moderately acid (pH 5.8); gradual smooth boundary

C1--43 to 61 cm; very cobbly loamy sand, yellowish brown (10YR 5/4) dry, dark yellowish brown (10YR 4/4) moist; structureless single grain; loose, nonsticky and nonplastic; common fine roots; many fine interstitial pores; 20 percent gravel and 30 percent cobbles; moderately acid (pH 5.6); abrupt wavy boundary

C2--61 to 150 cm; extremely cobbly sand, yellowish brown (10YR 5/4) dry, dark yellowish brown (10YR 4/4) moist; structureless single grain; loose, nonsticky and nonplastic; few very fine roots; many fine interstitial pores; 25 percent gravel and 50 percent cobbles; moderately acid (pH 5.6)

TYPE LOCATION: Lane County, Oregon; about 80 km east of Eugene in the McKenzie River valley, near the multiple use sign south of Buchart Bridge and east of the road to Cougar Reservoir; in the southwest 1/4 northwest 1/4 of section 19, T. 16 S., R. 5 E., Willamette Meridian; Blue River, Oregon, U.S. Geological Survey quadrangle; latitude 44.1635 degrees north, 122.2590 degrees west, datum WGS 84 (coordinates estimated from PLSS description)

RANGE IN CHARACTERISTICS:
Mean annual soil temperature--8 to 11 degrees C
Soil moisture control section--dry for less than 45 consecutive days following summer solstice
Thickness of umbric epipedon--25 to 50 cm
Depth to sandy-skeletal material--25 to 50 cm
Reaction--pH 5.6 to 6.5

Particle-size control section (weighted average)
*Total fragment content--greater than 35 percent

Oi horizon
*Composition--slightly decomposed plant material
*Thickness--0 to 5 cm

A horizons
*Hue--10YR, 7.5YR
*Value--2 to 3 moist, 4 or 5 dry
*Chroma--2 or 3 moist or dry
*Fine-earth texture--loam, sandy loam
*Clay content--5 to 18 percent
*Total fragment content--5 to 35 percent
*Gravel content--5 to 30 percent
*Cobble content--0 to 30 percent
*Thickness--25 to 50 cm

C horizons
*Value--4 or 5 moist, 5 or 6 dry
*Chroma--3 or 4 moist or dry
*Fine-earth texture--loamy sand, sand, coarse sand
*Clay content--0 to 10 percent
*Total fragment content--50 to 90 percent
*Gravel content--15 to 35 percent
*Cobble content--20 to 60 percent

COMPETING SERIES: None

GEOGRAPHIC SETTING:
Elevation--240 to 910 m
Climate--mild, wet winters; warm, dry summers
Mean annual precipitation--1400 to 2200 mm
Mean annual air temperature--7 to 10 degrees C
Frost-free period--100 to 200 days

GEOGRAPHICALLY ASSOCIATED SOILS:
Cupola--ashy-skeletal particle-size control section; located on high terraces and mountain bases
Jimbo--lacks rock fragments above a depth of 100 cm; located on stream terraces and high flood plains
Saturn--averages greater than 18 percent clay in the upper part of the particle-size control section; located on terraces and drainageways

DRAINAGE AND SATURATED HYDRAULIC CONDUCTIVITY:
Drainage class--somewhat excessively drained
Saturation in normal years--none
Flooding--rare
Ponding--none
Saturated hydraulic conductivity (Ksat)--high in the epipedon and very high below

USE AND VEGETATION:
Use--wildlife habitat, recreation
Potential natural vegetation--red alder, bigleaf maple, Douglas-fir, western hemlock, vine maple, salal, Indian plum, youth on age, arctic sweet coltsfoot, bedstraw, Siberian springbeauty, false Solomon's seal

DISTRIBUTION AND EXTENT: Western Cascade Mountains, Oregon; MLRA 3; small extent

SOIL SURVEY REGIONAL OFFICE (SSRO) RESPONSIBLE: Bozeman, Montana

SERIES ESTABLISHED: Lane County Area, Oregon; 1981

REMARKS: Diagnostic horizons and other features
*Particle-size control section--zone from 25 to 100 cm
*Umbric epipedon--zone from 0 to 43 cm

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National Cooperative Soil Survey
U.S.A.