LOCATION WOODSIDE                MT

Inactive Series
Rev. WC/BHW/RJE
07/2013

WOODSIDE SERIES

The Woodside series includes weakly developed soils forming in noncalcareous till on foothills of mountains and on terminal moraines where mountain glaciers entered the valleys from deeply incised canyons. The till consists of a mass of boulders and cobble firmly embedded in sandy fine-earth material derived largely from granite, gneiss and schist rocks, but includes some material from quartzite and other metamorphosed sedimentaries.

TAXONOMIC CLASS: Coarse-loamy over sandy or sandy-skeletal, isotic over mixed Spodic Dystrocryepts

TYPICAL PEDON: (Woodside stony fine sandy loam).

Ao--1 to 0 inches; very dark gray (10YR 3/1), black (10YR 2/1) moist; organic mat containing a small proportion of mineral soil.

A1--0 to 1 inches; light brownish gray (10YR 6/2), dark grayish brown (10YR 4/2) moist; weak fine crumb sandy loam; abundant stones on surface and through solum; loose, dry; very friable, moist; slightly acid to moderately acid. (1 to 2 inches thick)

A21--1 to 3 inches; pale brown (10YR 6/3), yellowish brown (10YR 5/4) moist; weak, medium subangular blocky fine sandy loam; loose, dry; very friable, moist; moderately acid. (2 to 4 inches thick)

A22--3 to 11 inches; very pale brown (10YR 7/3), light yellowish brown (10YR 6/4) moist; weak medium subangular blocky fine sandy loam; loose, dry; very friable, moist; moderately acid. (7 to 10 inches thick)

B2--11 to 18 inches; very pale brown (10YR 7/3), yellowish brown (10YR 5/4) moist; fine sandy loam containing firm lumps or subangular blocks of light yellowish brown (10YR 6/4), brown (10YR 5/3) moist; light fine sandy clay loam; soft, dry; very friable, moist; moderately acid. (3 to 12 inches thick)

C--18 to 27 inches; white gravelly sand or loamy sand between boulders and cobblestones.

TYPE LOCATION: Ravalli County, Montana.

RANGE IN CHARACTERISTICS: Chiefly in the amount and size of stone fragments on and in the soil. The B2 horizon is not always readily apparent. At the lower elevations these soils have quite well defined A2 horizons but at higher elevations the A2 is weak and the Bir of weak Podzols is beginning to form in the upper part of the A2.

COMPETING SERIES: There are no competing series

GEOGRAPHIC SETTING: Gently rolling to hilly.

GEOGRAPHICALLY ASSOCIATED SOILS: The Woodside soils lie generally higher than Como soils, Gray Wooded soils of the same general area, which are more strongly developed, more clayey leached in their A2 horizons and seem to be derived from older till of the same general kind as Woodside soils. Stronger chroma in the A2 of Woodside than in Como soils indicate they are somewhat gradational to weak Podzols ( Brown Podzolic soils). The associated moderately to strongly developed Lick soils on much older till have clear horizon differentiation and much stronger chroma and more clay in their B2 horizons than either Woodside or Como soils.

DRAINAGE AND PERMEABILITY: Well drained. Runoff is low on virgin areas, medium to high under cultivation. Moderately rapid permeability.

USE AND VEGETATION: Forest and brushy pasture chiefly. Small moderately stony areas are planted to apple orchards. Areas free of large stone are used for production of alfalfa or mixed alfalfa and tame grass hay, small fruits and garden crops under irrigation. Western yellow pine with an undergrowth of shrubs and grasses in the more open places. Some deciduous broad-leafed trees grow where moisture is above average for the soil.

DISTRIBUTION AND EXTENT: Western Montana.

MLRA SOIL SURVEY REGIONAL OFFICE (MO) RESPONSIBLE: Bozeman, Montana

SERIES ESTABLISHED: Bitterroot Valley Area, Montana, 1952. The name is taken from a village in Ravalli County.

OSED scanned by SSQA. Last revised by state 1/54.

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National Cooperative Soil Survey
U.S.A.