LOCATION LONNIEBEE MT
Established Series
Rev: GAR-JJU-EMM
04/2013
LONNIEBEE SERIES
The Lonniebee series consists of moderately deep, well drained soils that formed in colluvium over residuum derived from interbedded sandstone, shale or argillite. These soils are on mountains and hills. Slopes are 4 to 70 percent. Mean annual precipitation is about 28 inches, and the mean annual air temperature is about 36 degrees F.
TAXONOMIC CLASS: Loamy-skeletal, mixed, superactive Eutric Haplocryalfs
TYPICAL PEDON: Lonniebee channery loam, in forest (colors are for dry soil unless otherwise noted).
Oi--0 to 1 inch; slightly decomposed needles, twigs and leaves. (1 to 2 inches thick)
E--1 to 11 inches; light brownish gray (10YR 6/2) channery loam, dark grayish brown (10YR 4/2) moist; moderate very fine and fine granular structure; soft, very friable, slightly sticky and slightly plastic; common very fine, fine and medium roots; common fine and few medium pores; 20 percent channers, 5 percent flagstones, 5 percent angular stones; slightly acid (pH 6.2) gradual smooth boundary. (7 to 16 inches thick)
Bt1--11 to 19 inches; brown (10YR 5/3) very flaggy clay loam, dark grayish brown (10YR 4/2) moist; weak medium subangular blocky structure parting to moderate fine granular; slightly hard, friable, moderately sticky and moderately plastic; common very fine and fine, and few medium roots; common very fine, and few fine and medium pores; common faint clay films on faces of peds and channer surfaces; 25 percent channers, 25 percent flagstones; moderately acid (pH 5.8); clear smooth boundary.
Bt2--19 to 33 inches; light yellowish brown (10YR 6/4) very flaggy clay loam, brown (10YR 5/3) moist; moderate medium subangular blocky structure; slightly hard, firm, moderately sticky and moderately plastic; common very fine and fine, and few medium roots; common very fine, and few fine and medium pores; common distinct clay films on faces of peds and channer surfaces; 25 percent channers, 30 percent flagstones; moderately acid (pH 5.6); gradual wavy boundary. (combined thickness of Bt1, Bt2 horizons - 13 to 24 inches)
Cr--33 to 38 inches; weathered and fractured sandstone bedrock.
R--38 inches; hard sandstone bedrock.
TYPE LOCATION: Gallatin County, Montana; 1320 feet south and 1200 feet east of the NW corner of section 27, T. 2S, R. 7E.
RANGE IN CHARACTERISTICS:
Mean annual soil temperature - 36 to 40 degrees F.
Mean summer soil temperature - 45 to 47 degrees F.
Depth to top of argillic horizon - 8 to 18 inches
Depth to a lithic contact - 20 to 40 inches
E horizon
Value: 5 or 6 dry; 4 or 5 moist
Chroma: 2 to 4; dry or moist
Clay content: 12 to 25 percent
Texture: loam or sandy loam
Rock fragments: 15 to 45 percent--15 to 35 percent channers and gravel, 0 to 5 percent flagstones and cobbles, 0 to 5 percent angular stones
Reaction: pH 5.6 to 6.5
Bt1 horizon
Value: 5 or 6 dry; 4 or 5 moist
Chroma: 2 to 6; dry or moist
Clay content: 22 to 35 percent
Texture: loam or clay loam
Rock fragments: 35 to 60 percent--20 to 50 percent channers and gravel, 5 to 30 percent flagstones and cobbles
Reaction: pH 5.6 to 7.3
Bt2 horizon
Value: 5 or 6 dry; 4 or 5 moist
Chroma: 3 to 6; dry or moist
Clay content: 22 to 35 percent
Texture: loam or clay loam
Rock fragments: 40 to 70 percent--20 to 55 percent channers and gravel, 10 to 35 percent flagstones and cobbles
Reaction: pH 5.6 to 7.3
COMPETING SERIES:
Frisco (CO) - are very deep
Helmville (MT) - are very deep
Needleton (CO) - are very deep
Tamarron (CO) - do not have a lithic contact at moderate depths
Tigeron (MT) - are very deep
Watsondraw (WY) - are very deep
Worock (MT) - are very deep
GEOGRAPHIC SETTING:
Landform - mountains and hills
Elevation - 5,300 to 8,800 feet
Slope - 4 to 70 percent
Parent material - colluvium over residuum derived from interbedded sandstone, shale, or argillite
Climate - long, cold winters; moist springs; warm summers
Mean annual precipitation - 25 to 35 inches
Mean annual air temperature - 34 to 38 degrees F.
Frost-free period - 30 to 70 days
GEOGRAPHICALLY ASSOCIATED SOILS: None listed.
DRAINAGE AND PERMEABILITY: Well drained; moderately slow permeability.
USE AND VEGETATION: Lonniebee soils are used mainly for woodland, understory grazing and wildlife habitat. Potential native vegetation is mainly Douglas-fir, lodgepole pine, Engelmann spruce, subalpine fir, grouse whortleberry, twinflower, white spiraea, pinegrass and heartleaf arnica.
DISTRIBUTION AND EXTENT: Lonniebee soils are of small extent in southwestern Montana. MLRA - 43B.
MLRA SOIL SURVEY REGIONAL OFFICE (MO) RESPONSIBLE: Bozeman, Montana.
SERIES ESTABLISHED: Gallatin County, Montana, 1997.
REMARKS: Diagnostic horizons and features recognized in this pedon are:
Ochric epipedon - from 0 to 11 inches (Oi, E horizons)
Argillic horizon - from 11 to 33 inches (Bt1, Bt2 horizons)
Paralithic contact - at 33 inches (Cr horizon)
Lithic contact - at 38 inches (R horizon)
Particle-size control section - from 11 to 31 inches (Bt1, part of Bt2 horizons)
Lonniebee soils have a cryic temperature regime and an udic moisture regime.
ADDITIONAL DATA: Soil interpretation record - MT1459.
National Cooperative Soil Survey
U.S.A.