LOCATION MENAGERIE               OR

Tentative Series
DRJ/JGM/KMS
01/2017

MENAGERIE SERIES

Landscape--western Cascade Mountains
Landform--glacially influenced structural benches, stream terraces in U-shaped valleys
Slope--0 to 75 percent
Parent material--colluvium or earthflow deposits derived from igneous rock mixed with till and volcanic ash throughout
Mean annual precipitation--about 2100 mm
Mean annual air temperature--about 7 degrees C
Depth class--very deep
Drainage class--well drained
Soil moisture regime--udic
Soil temperature regime--frigid
Soil moisture subclass--typic

TAXONOMIC CLASS: Medial, amorphic, frigid Typic Hapludands

TYPICAL PEDON: Menagerie gravelly medial silt loam on a 35-percent, forested slope at an elevation of 1040 m

Oi--0 to 2 cm; slightly decomposed plant material; abrupt wavy boundary

A1--2 to 16 cm; gravelly medial silt loam, brown (7.5YR 4/2) dry, dark brown (7.5YR 3/2) moist; moderate fine granular structure; very friable, soft, slightly sticky and nonplastic; many very fine, common medium and coarse, and few fine roots; many very fine and fine irregular pores and common medium and coarse tubular pores; 15 percent basalt gravel and 5 percent basalt cobbles; strongly acid (pH 5.3); clear wavy boundary

A2--16 to 36 cm; gravelly medial silt loam, brown (7.5YR 5/3) dry, dark brown (7.5YR 3/3) moist; moderate fine subangular blocky structure; very friable, soft, slightly sticky and nonplastic; many very fine, common medium and coarse, and few fine roots; many very fine and fine irregular pores and common medium and coarse tubular pores; 15 percent basalt gravel and 5 percent basalt cobbles; strongly acid (pH 5.4); abrupt wavy boundary

AB--36 to 61 cm; gravelly medial silt loam, light yellowish brown (10YR 6/4) dry, brown (7.5YR 4/3) moist; moderate medium subangular blocky structure; friable, slightly hard, slightly sticky and slightly plastic; many very fine, common medium, and few fine and coarse roots; many very fine dendritic tubular and irregular pores and common fine, medium, and coarse tubular pores; 10 percent basalt gravel and 5 percent basalt cobbles; moderately acid (pH 5.6); gradual wavy boundary

Bw--61 to 110 cm; gravelly medial silt loam, light yellowish brown (10YR 6/4) dry, brown (7.5YR 4/3) moist; weak medium subangular blocky structure; friable, slightly hard, slightly sticky and slightly plastic; common very fine and few fine and medium roots; common very fine and fine dendritic tubular pores and common very fine and fine and few medium tubular pores; 15 percent basalt gravel and 5 percent basalt cobbles; moderately acid (pH 5.7); clear wavy boundary

BC--110 to 150 cm; gravelly medial silt loam, light yellowish brown (10YR 6/4) dry, brown (7.5YR 4/4) moist; weak medium subangular blocky structure; friable, slightly hard, slightly sticky and slightly plastic; few very fine and fine roots; common very fine and fine dendritic tubular pores and common very fine and fine tubular pores; 15 percent basalt gravel and 10 percent basalt cobbles; moderately acid (pH 5.8)

TYPE LOCATION: Linn County, Oregon, about 36 km east of Sweet Home and 6.5 km northeast of the junction of Upper Soda Fork Road and OR Highway 20; 350 m south and 130 m east of the northwest corner of section 8, T. 13 S., R. 5 E., Willamette Meridian; latitude 44.457333, longitude -122.2445833, datum WGS 84 (coordinates determined with a GPS)

RANGE IN CHARACTERISTICS:
Dry days--less than 45 consecutive days between depths of 10 and 30 cm following summer solstice
Mean annual soil temperature--5 to 7 degrees C
Thickness of umbric epipedon--25 to 50 cm
Reaction--5.0 to 6.0 throughout all mineral horizons
Thickness of andic soil properties--greater than 150 cm (below mineral soil surface)

Estimated properties of layers with andic soil properties
*1/3-bar bulk density--0.6 to 0.9 g/cm3
*Phosphate retention--greater than 85 percent
*Ammonium oxalate extractable Al + 1/2 Fe--2 to 4 percent
*15-bar water retention--30 to 70 percent (undried samples), greater than 15 percent (dried samples)
*0.02- to 2.0-mm fraction--greater than 30 percent
*Volcanic glass content in 0.02- to 2.0-mm fraction--5 to 30 percent

Particle-size control section
*Clay content--18 to 27 percent
*Total fragment content--10 to 35 percent

O horizon
*Thickness--1 to 10 cm

A1 horizon
*Hue--10YR, 7.5YR
*Value--2 to 3 moist, 3 to 5 dry
*Chroma--2 or 3 moist or dry
*Clay content--15 to 20 percent
*Sand content--20 to 35 percent
*Total fragment content--15 to 35 percent
*Gravel content--15 to 30 percent
*Cobble content-- to 10 percent

A2 horizon
*Hue--10YR, 7.5YR
*Value--2.5 or 3 moist, 4 or 5 dry
*Chroma--2 to 4 moist, 3 or 4 dry
*Fine-earth texture--medial silt loam, medial loam
*Clay content--18 to 27 percent
*Sand content--20 to 40 percent
*Total fragment content--10 to 35 percent
*Gravel content--10 to 30 percent
*Cobble content--0 to 10 percent

Combined thickness of A horizon--25 to 50 cm

AB horizon, or BA horizon (where present)
*Hue--10YR, 7.5YR
*Value--3 or 4 moist, 4 to 6 dry
*Chroma--3 or 4 moist or dry
*Fine-earth texture--medial silt loam, medial loam
*Clay content--18 to 27 percent
*Sand content--20 to 40 percent
*Total fragment content--10 to 35 percent
*Gravel content--10 to 30 percent
*Cobble content--0 to 10 percent
*Thickness--0 to 30 cm

Bw horizon
*Hue--2.5Y, 10YR, 7.5YR
*Value--3 to 5 moist, 5 to 7 dry
*Chroma--3 or 4 moist, 3 to 6 dry
*Fine-earth texture--medial silt loam, medial loam
*Clay content--18 to 27 percent
*Sand content--15 to 35 percent
*Total fragment content--5 to 35 percent
*Gravel content--5 to 30 percent
*Cobble content--0 to 10 percent
*Thickness--50 to 150 cm

BC horizon
*Hue--2.5Y, 10YR, 7.5YR
*Value--3 to 5 moist, 5 to 7 dry
*Chroma--3 or 4 moist, 3 to 6 dry
*Fine-earth texture--medial silt loam, medial loam
*Clay content--18 to 27 percent
*Sand content--15 to 35 percent
*Total fragment content--5 to 40 percent
*Gravel content--5 to 35 percent
*Cobble content--0 to 10 percent

COMPETING SERIES:
Larchmount--umbric epipedon greater than 50 cm thick; hue of 2.5Y or 5Y in substratum
Lempira--umbric epipedon greater than 50 cm thick
Zynbar--ochric epipedon

GEOGRAPHIC SETTING:
Elevation--500 to 1200 m
Climate--warm, dry summers; cool, wet winters
Mean annual precipitation--1900 to 2300 mm
Mean annual air temperature--6 to 9 degrees C
Frost-free period--90 to 135 days

GEOGRAPHICALLY ASSOCIATED SOILS:
Coolcamp--greater than 35 percent rock fragments; in convex positions
Huss--greater than 35 percent rock fragments; 50 to 100 cm deep to hard bedrock; in convex positions

DRAINAGE AND SATURATED HYDRAULIC CONDUCTIVITY:
Drainage class--well drained
Saturation in normal years--below a depth of 200 cm
Flooding--none
Ponding--none
Saturated hydraulic conductivity (Ksat)--moderately high

USE AND VEGETATION:
Use--watershed, recreation, wildlife habitat, timber production
Potential natural vegetation--Douglas-fir, western hemlock, Pacific rhododendron, Cascade Oregon grape, salal, white-veined pyrola, red huckleberry, snow raspberry, twinflower

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

MLRA SOIL SURVEY REGIONAL OFFICE (MO) RESPONSIBLE: Portland, Oregon

SERIES PROPOSED: Willamette National Forest, Linn County, Oregon; name from Menagerie Wilderness Area

REMARKS:
Diagnostic horizons and other features in this pedon
*Particle-size control section--zone from 2 to 102 cm
*Umbric epipedon--zone from 2 to 36 cm
*Cambic horizon--zone from 36 to 150 cm
*Andic soil properties--zone from 2 to 150 cm
*Volcanic glass--zone from 2 to 150 cm

06/2016--Assumed to meet criteria 2 (no ash required) for andic soil properties, in the 12th edition of Keys to Soil Taxonomy. It is also assumed that enough ash is present for this soil to meet criteria 3. Additional lab data is needed to confirm the degree of ash influence.

ADDITIONAL DATA: Type location user site ID--2013OR043003

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National Cooperative Soil Survey
U.S.A.