LOCATION BEARBEACH IDEstablished Series
TAXONOMIC CLASS: Sandy-skeletal, mixed, frigid Typic Endoaquepts
TYPICAL PEDON: Bearbeach mucky sandy loam, in a backswamp (colors are for moist soil unless otherwise noted).
Oa--0 to 8 cm; dark brown (7.5YR 3/4) (rubbed and pressed); highly decomposed organic matter; lime segregated into common fine masses and few fine threads; strongly effervescent; moderately alkaline (pH 7.9); clear wavy boundary. (0 to 13 cm thick)
Ag--8 to 15 cm; very dark gray (10YR 3/1) mucky sandy loam, gray (10YR 5/1) dry; common medium prominent strong brown (7.5YR 5/6) redox concentrations; weak fine subangular blocky structure; soft, very friable, nonsticky and nonplastic; common fine and very fine and few medium roots; many very fine, fine, and medium tubular; disseminated lime; strongly effervescent; 5 percent gravel; moderately alkaline (pH 7.9); clear wavy boundary. (7 to 20 cm thick)
Cg1--15 to 38 cm; gray (10YR 5/1) very gravelly loamy coarse sand, light gray (10YR 7/1) dry; single grain; loose, nonsticky and nonplastic; common very fine and few medium roots; few fine and common medium tubular pores; disseminated lime; strongly effervescent ; 40 percent gravel; moderately alkaline (pH 7.9); gradual wavy boundary. (20 to 28 cm thick)
Cg2--38 to 152 cm; gray (2.5Y 5/1) extremely gravelly loamy coarse sand, gray (2.5Y 6/1) dry; single grain; loose, nonsticky and nonplastic; disseminated lime; strongly effervescent; 85 percent gravel; moderately alkaline (pH 7.9). (56 to 119 cm thick)
TYPE LOCATION: Bear Lake County, Idaho; about 1370 meters southeast of St. Charles; 731 meters north and 731 meters east of the SW corner of sec. 24, T. 15 S., R. 43 E. St. Charles USGS topographic quadrangle. UTM NAD83 Zone 12: Northing 4661364m, Easting 468835m.
RANGE IN CHARACTERISTICS:
Mean annual soil temperature: 5 to 7 degrees C.
Depth to seasonal high water table: 0 to 25 cm December through May
Oa horizon (absent in some pedons)
Hue: 7.5YR or 10YR
Value: 2 or 3 moist
Chroma: 2 to 4 moist
Ag horizon
Hue: 10YR or 2.5Y
Value: 3 or 4 moist, 5 dry
Chroma: 1 or 2, dry or moist
Texture: MK-SL, SL, or L
Noncarbonate clay content: 10 to 15 percent
Calcium carbonate equivalent: 5 to 15 percent
Rock fragments: 0 to 10 percent gravel
Reaction: pH 7.9 to 8.4
Cg1 horizon
Hue: 10YR or 2.5Y
Value: 4 or 5 moist, 5 to 7 dry
Chroma: 1 to 3, moist or dry
Texture: LCOS, LS or COSL
Noncarbonate clay content: 2 to 10 percent
Calcium carbonate equivalent: 5 to 10 percent
Rock fragments: 40 to 85 percent total; 40 to 85 percent gravel, 0 to 10 percent cobbles
Reaction: pH 7.9 to 8.4
Cg2 horizon
Hue: 2.5Y
Value: 4 to 6 moist, 5 to 7 dry
Chroma: 1 to 3, moist or dry
Texture: LCOS or S
Noncarbonate clay content: 2 to 10 percent
Calcium carbonate equivalent: 5 to 10 percent
Rock fragments: 70 to 85 percent total; 50 to 85 percent gravel; 0 to 20 percent cobbles
Reaction: pH 7.9 to 8.4
COMPETING SERIES: There are no other series in this family.
GEOGRAPHIC SETTING:
Landscape: Lake plains
Landform: Low lake terraces
Elevation: 1790 to 1830 meters
Slope: 0 to 2 percent
Parent material: mixed alluvium
Climate: long, cold winters; moist springs; warm summers
Mean annual precipitation: 305 to 406 mm, much of which falls as snow or as spring rain
Mean annual temperature: 5 to 7 degrees C.
Frost-free period: 70 to 95 days
GEOGRAPHICALLY ASSOCIATED SOILS: These are the Bear Lake, Chesbrook, Dinswamp (T), and La Roco (T) soils. Bear Lake soils are on slightly higher terraces, have a mollic epipedon and a fine-silty particle size control section. Chesbrook soils are on slightly higher terraces, have a mollic epipedon, a fine-silty particle size control section, and are carbonatic. Dinswamp soils are on lakebeds and have a histc epipedon. La Roco soils are on slightly higher terraces, have a mollic epipedon, and are carbonatic.
DRAINAGE AND PERMEABILITY:
Drainage class: Very poorly
Runoff: Slight to none
Saturated hydraulic conductivity ( permeability): very rapid
USE AND VEGETATION:
Major uses: Wildlife habitat
Range/ecological site: R013XY055ID
Dominant native vegetation: beaked sedge, water sedge, Baltic rush, hardstem bulrush, and broadleaf cattail
DISTRIBUTION AND EXTENT: Southeastern Idaho; MLRA 13. The soils are of small extent
MLRA SOIL SURVEY REGIONAL OFFICE (MO) RESPONSIBLE: Bozeman, Montana
SERIES ESTABLISHED: Bear Lake County, Idaho, 2008, Bear Lake Area Soil Survey
REMARKS: Diagnostic horizons and features recognized in this pedon are:
Ochric epipedon from the soil surface to 15 cm
Particle-size control section: from 25 to 100 cm
Soil temperature regime: Frigid
Soil moisture regime: Aquic