LOCATION BEESKOVE MTEstablished Series
TAXONOMIC CLASS: Loamy-skeletal, mixed, superactive, frigid Typic Eutrudepts
TYPICAL PEDON: Beeskove gravelly loam, forested. (Colors are for dry soil unless otherwise noted.)
0--0 to 2 inches; undecomposed and slightly decomposed forest litter. (1 to 2 inches thick)
E--2 to 10 inches; light gray (10YR 7/2) gravelly loam, grayish brown (10YR 5/2) moist; moderate fine granular structure; soft, very friable, slightly sticky and nonplastic; many very fine, fine, and medium roots and few coarse roots; many very fine and fine pores; 25 percent angular pebbles; neutral (pH 6.8); clear wavy boundary. (6 to 12 inches thick)
E/Bw--10 to 22 inches; E part (75 percent) is pale brown (10YR 6/3) very gravelly loam, brown (10YR 5/3) moist; B part (25 percent) is pale brown (10YR 6/3) very gravelly loam, brown (10YR 5/3) moist; texture mixed is very gravelly loam; weak medium subangular blocky structure; slightly hard, very friable, nonsticky and nonplastic; many very fine, fine, and medium roots and few coarse roots; many very fine and fine pores; 40 percent angular pebbles; neutral (pH 6.8); clear wavy boundary. (10 to 15 inches thick)
Bw--22 to 29 inches; pale brown (10YR 6/3) very gravelly loam, brown (10YR 5/3) moist; moderate medium subangular blocky structure; slightly hard, very friable, nonsticky and nonplastic; common very fine and fine roots and few medium roots; common very fine and fine pores; 45 percent angular pebbles; neutral (pH 7.2); clear wavy boundary. (6 to 18 inches thick)
Bk1--29 to 49 inches; very pale brown (10YR 7/3) extremely gravelly loam, brown (10YR 5/3) moist; massive; slightly hard, very friable, nonsticky and nonplastic; few very fine roots; few very fine pores; 60 percent angular pebbles and 5 percent angular cobbles; disseminated lime; strongly effervescent; moderately alkaline (pH 8.0); gradual wavy boundary. (10 to 25 inches thick)
Bk2--49 to 60 inches; very pale brown (10YR 7/3) extremely gravelly loam, pale brown (10YR 6/3) moist; massive; slightly hard, very friable, nonsticky and nonplastic; 65 percent angular pebbles and 5 percent angular cobbles; disseminated lime; violently effervescent; moderately alkaline (pH 8.4).
TYPE LOCATION: Missoula County, Montana; 900 feet west and 900 feet south of the E 1/4 corner of sec. 10, T. 12 N., R. 21 W.
RANGE IN CHARACTERISTICS:
Soil temperature - 42 to 46 degrees F.
Moisture control section - between 8 and 24 inches.
Depth to Bk horizon - 20 to 40 inches
E horizon - Hue: 10YR or 2.5Y
Value: 6 or 7 dry; 4, 5, or 6 moist
Chroma: 2 or 3
Clay content: 5 to 15 percent
Rock fragments: 15 to 30 percent pebbles
Reaction: pH 6.6 to 7.3
E/Bw horizon - Hue: 10YR or 2.5Y
Value: 6 or 7 dry; 4 or 5 moist
Chroma: 2, 3, or 4
Texture: loam or sandy loam
Clay content: 5 to 15 percent
Rock fragments: 35 to 55 percent-0 to 10 percent cobbles; 35 to 45 percent pebbles
Reaction: pH 6.6 to 7.3
Bw horizon - Hue: 10YR or 2.5Y
Value: 5 or 6 dry; 4 or 5 moist
Chroma: 2, 3, or 4
Texture: loam or sandy loam
Clay content: 5 to 15 percent
Rock fragments: 35 to 60 percent-0 to 10 percent cobbles; 35 to 60 percent pebbles
Reaction: pH 6.6 to 7.3
Bk horizons - Hue: 10YR or 2.5Y
Value: 6 or 7 dry; 5 or 6 moist
Chroma: 2 or 3
Texture: loam or sandy loam
Clay content: 5 to 15 percent
Rock fragments: 60 to 75 percent-5 to 10 percent cobbles; 55 to 65 percent pebbles
Calcium carbonate equivalent: 10 to 15 percent
Reaction: pH 7.9 to 8.4
COMPETING SERIES:
Mollman (MT) - have less than 60 percent rock fragments in the Bk horizon; have more than 15 percent calcium carbonate equivalent in the Bk horizon.
Posen (MI) - have horizons of illuvial organic matter; do not have a mixed E/Bw horizon; do not have a Bk horizon.
GEOGRAPHIC SETTING:
Landform - mountains.
Elevation - 3,600 to 6,000 feet.
Slope - 4 to 80 percent.
Parent material - colluvium derived from argillite, quartzite and limestone.
Climate - long, cold winters; moist springs.
Mean annual precipitation - 24 to 35 inches, much of which falls as snow or as spring rain.
Mean annual temperature - 40 to 44 degrees F.
Frost-free season - 70 to 90 days.
DRAINAGE AND PERMEABILITY: Well drained; moderate permeability.
USE AND VEGETATION: Beeskove soils are used for timber production and watersheds and as wildlife habitat. The native vegetation is Douglas- fir, western larch, ponderosa pine, and lodgepole pine with an understory of twinflower, blue huckleberry, dwarf huckleberry, myrtle pachistima, and common beargrass.
DISTRIBUTION AND EXTENT: Beeskove soils are of small extent in western Montana.
MLRA SOIL SURVEY REGIONAL OFFICE (MO) RESPONSIBLE: Bozeman, Montana.
SERIES ESTABLISHED: Missoula County, Montana, 1985.
REMARKS: Soil Interpretation Record: MT0811. Diagnostic horizons and features recognized in this pedon are: an ochric epipedon from the mineral soil surface to 7 inches (E horizon); an albic horizon from 2 to 10 inches (E horizon); a cambic horizon from 10 to 29 inches (E/Bw, Bw horizons); accumulation of secondary carbonates from 29 to 60 inches (Bk1, Bk2 horizons); a particle-size control section from 10 to 40 inches below the mineral soil surface (E/Bw, Bw, Bk1 horizons). Beeskove soils have a udic moisture regime and a frigid temperature regime.