LOCATION SEELOVERS IDEstablished Series
TAXONOMIC CLASS: Fine-silty, mixed, superactive, frigid Fluvaquentic Endoaquolls
TYPICAL PEDON: Seelovers silt loam, woodland; on a 1 percent slope at 2,220 feet elevation. When described on October 11, 1972, the soil was moist. Pedon was redescribed on September 18, 1994. (Colors are for moist soil unless otherwise stated.)
Al--O to 6 inches; very dark brown (10YR 2/2) silt loam, dark grayish brown (10YR 4/2) dry; moderate fine and medium subangular blocky structure; hard, friable, slightly sticky and slightly plastic; many fine and medium roots; many fine and very fine pores; slightly acid (pH 6.2); clear wavy boundary. (6 to 8 inches thick)
A2--6 to 12 inches; very dark grayish brown (10YR 3/2) silt loam, dark grayish brown (10YR 4/2) dry; moderate medium subangular blocky structure; hard, friable, slightly sticky and slightly plastic; common fine and medium roots; many very fine and fine pores; slightly acid (pH 6.2); clear wavy boundary. (4 to 6 inches thick)
Bg1--12 to 17 inches; grayish brown (2.5Y 5/2) silt loam, light brownish gray (2.5Y 6/2) dry; moderate medium subangular blocky structure; hard, friable, slightly sticky and slightly plastic; few very fine roots; many very fine and fine pores; common medium faint dark yellowish brown (10YR 4/4) redox concentrations; slightly acid (pH 6.2); clear wavy boundary. (4 to 6 inches thick)
Bg2--17 to 29 inches; grayish brown (2.5Y 5/2) silt loam, light gray (2.5Y 7/2) dry; weak medium subangular blocky structure; hard, firm, moderately sticky and moderately plastic; many very fine and fine pores; common medium and coarse prominent brown (7.5YR 4/4) redox concentrations; slightly acid (pH 6.3); abrupt wavy boundary. (10 to 12 inches thick)
Cg--29 to 60 inches; olive gray (5Y 5/2) silt loam, light gray (2.5Y 7/2) dry; massive; hard, firm, moderately sticky and moderately plastic; many very fine and fine pores; common medium and coarse prominent strong brown (7.5YR 5/6) redox concentrations; slightly acid (pH 6.3).
TYPE LOCATION: Boundary County, Idaho, Hall Creek Area; about 500 feet south and 1,650 feet east of the northwest corner of sec. 25, T. 65 N., R. l W.; Latitude - 48 degrees, 57 minutes, 43 seconds North; Longitude - 116 degrees, 24 minutes, 37 seconds West; USGS Copeland Quadrangle.
RANGE IN CHARACTERISTICS:
Average annual soil temperature - 42 to 45 degrees F.
Average summer soil temperature - 50 to 54 degrees F. with an O horizon.
Depth to seasonal high water table - 0 to 18 inches undrained (December to July), 18 to 36 inches drained (December to June)
Thin buried A horizons - present in some pedons
Reaction - slightly acid or neutral throughout
A horizon
Value - 2 or 3 moist, 4 or 5 dry
Chroma - 1 or 2 dry or moist
Clay content - 10 to 27 percent
Bg horizon
Hue - 10YR, 2.5Y, or 5Y
Value - 4 to 6 moist, 6 or 7 dry
Redoximorphic features - common to many, value 4 or 5 moist, chroma 4 or 6 dry or moist
Texture - SIL, SICL
Clay content - 18 to 35 percent
Cg horizon
Hue - 5Y, 5GY, 5B, N or 2.5Y
Value - 4 to 6 moist, 6 or 7 dry
Chroma - 1 or 2 dry or moist
Redoximorphic features - common to many, value 4 or 5 moist, chroma 4 or 6 dry or moist
Texture - SIL, SICL (stratified in some pedons with coarser texture layers)
Clay content - 18 to 35 percent
COMPETING SERIES: These are the Sturgill and Vancecreek series. Sturgill soils have lithologic discontinuities and are in a 13 to 17 inch precipitation zone. Vancecreek soils have Bg horizons 15 to 36 inches thick and have average annual air temperatures of 38 to 42 degrees F.
GEOGRAPHIC SETTING: Seelovers soils are on level or nearly level low stream terraces, valley bottoms, and flood plains. Slopes range from 0 to 2 percent. These soils formed in local alluvium. Elevations range from 1,800 to 3,000 feet. The climate is subhumid with cold wet winters and moderately warm dry summers. The average annual precipitation is 24 to 35 inches, average annual air temperature is 42 to 44 degrees F., and the average frost-free period is 80 to 110 days.
GEOGRAPHICALLY ASSOCIATED SOILS: These are the Devoignes, Porthill, Pywell, Rubson, and Stien soils. Devoignes soils are in depressions on flood plains and have a histic epipedon. Porthill soils are on terraces and have more than 35 percent clay in the control section. Pywell soils are in depressions on flood plains and are very deep organic soils. Rubson soils are on terraces and are well drained. Stien soils are on terraces and moraines and are well drained.
DRAINAGE AND PERMEABILITY: Poorly drained; very slow runoff; moderately slow permeability. These soils are frequently flooded for very long periods (December to June) unless protected by levees.
USE AND VEGETATION: Woodland, hay and pasture. A few areas used to produce oats. Natural vegetation is mainly western redcedar, black cottonwood, thinleaf alder, willow, sedge, rush, pyramid spirea, common lady fern, and devils club.
DISTRIBUTION AND EXTENT: Northern Idaho and possibly northwestern Montana, and northeastern Washington. The series is not extensive.
MLRA SOIL SURVEY REGIONAL OFFICE (MO) RESPONSIBLE: Bozeman, Montana
SERIES ESTABLISHED: Boundary County, Idaho, 1974.
REMARKS: Classification change from fine-silty, mixed Typic Cryaquolls to fine-silty, mixed, superactive, frigid Fluvaquentic Endoaquolls
Diagnostic horizons and features recognized in this pedon are:
Mollic epipedon - the zone from 0 to 12 inches (A1 and A2 horizons)
Redoximorphic features - start at 12 inches (Bg1 horizon)
Particle-size control section - the zone from 10 to 40 inches (part of the A2, Bg1, Bg2, and part of the Cg horizon)